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The dissemination of personal data through digital media has increased significantly alongside the growing use of Quick Response (QR) Codes for various purposes, such as electronic tickets, certificates, and digital identities. Conventional QR Codes are open and can be easily scanned, copied, or manipulated by unauthorized parties. The personal data referred to in this study includes sensitive information such as full name, identity number (NIK/National ID), date of birth, address, phone number, and email address. This research proposes a layered security system that combines the Advanced Encryption Standard (AES) cryptographic algorithm with steganography using the Discrete Cosine Transform (DCT) method. The process begins with encrypting personal data using AES, converting the encrypted result into a QR Code, and embedding the QR Code into a digital image using DCT, hiding it in the image’s frequency domain. The digital images used are of fixed size and formats that preserve visual quality. System evaluation is carried out by testing the visual quality of the stego image, the success rate of QR Code extraction, and the integrity of the encrypted data. The results are expected to conceal sensitive information visually while maintaining its confidentiality, with potential applications in electronic ID cards, digital certificates, e-tickets, and other confidential documents.

QRIS (Quick Response Code Indonesian Standard) has become a widely used national digital payment standard. User satisfaction with this service needs to be monitored continuously to ensure its sustainability. This study aims to predict the level of QRIS user satisfaction based on their experiences and perceptions expressed organically on the Twitter social media platform. The method used is sentiment analysis with the Naive Bayes classification algorithm implemented using RapidMiner software. The research data was obtained from Twitter user comments collected through web scraping techniques. The text data then went through a preprocessing stage that included cleansing, stopword filtering, stemming, and tokenizing to be prepared as features ready to be processed by the model. The data was divided into training (80%) and testing (20%) subsets for model training and validation. The results showed that the Naive Bayes model was able to predict user satisfaction sentiment with an accuracy of 80.99%. These findings indicate that the model is highly accurate in identifying satisfied comments and sufficiently sensitive in detecting dissatisfaction. This study concludes that sentiment analysis of Twitter UGC data using Naive Bayes is an effective and efficient approach for predicting QRIS user satisfaction in real time. The practical implication of this study is to provide an automatic feedback system for service providers to monitor public sentiment and take targeted corrective actions.

The enactment of Indonesia's Law Number 20 of 2025 on the Code of Criminal Procedure (KUHAP 2025), effective January 2, 2026, introduces a paradigmatic shift in the coordination between investigators and public prosecutors: Article 58 mandates active coordination from the investigation stage, fundamentally departing from the sequential-passive model of the former KUHAP, while Article 70 imposes a strict seven-day deadline for indictment drafting after case files are declared complete. This study examines two interconnected questions: (1) how the legal framework governing investigator–prosecutor coordination is structured under KUHAP 2025 and related legislation; and (2) how that framework is implemented in practice at the Purwakarta District Prosecutor's Office. A normative–empirical mixed-method design was employed, integrating statutory, conceptual, and case-study approaches. Data were gathered through in-depth interviews with prosecutors and investigators at Purwakarta District Prosecutor's Office and Purwakarta Police Resort, case document analysis, and field observation. The theoretical framework combines Lawrence M. Friedman's Legal System Theory and Soerjono Soekanto's Law Enforcement Theory. Findings reveal that KUHAP 2025 delivers substantial normative advancement yet harbours three critical regulatory gaps: the absence of binding technical protocols for implementing mandatory active coordination, the lack of uniform and measurable case-file completeness standards, and no formal mechanism for resolving institutional disagreements on legal interpretation. On the ground, coordination at Purwakarta still operates under the old sequential-passive pattern despite the new law: case-file returns (P-19) remain frequent, driven primarily by absent expert testimony, insufficient factual narration in examination records, and mismatches between charged articles and legal facts. A Friedman–Soekanto diagnostic reveals simultaneous dysfunction across all three legal system components substance, structure, and legal culture with the entrenched 'waiting culture' between the police and the prosecution identified as the most resistant obstacle to reform.

This study discusses the reform of criminal law regarding acts of abuse of power within the Indonesian legal system. Abuse of power committed by public officials constitutes a serious violation of the rule of law and the principle of equality before the law because it can harm society and weaken public trust in the government. The old Criminal Code inherited from the colonial era was considered incapable of providing an optimal deterrent effect against perpetrators of abuse of authority. Therefore, the enactment of Law Number 1 of 2023 concerning the New Criminal Code became an important step in the reform of criminal law in Indonesia. This study aims to analyze criminal law reform policies in overcoming abuse of power and the effectiveness of their implementation in law enforcement. The results show that the new Criminal Code expands regulations regarding abuse of authority with stricter criminal sanctions and additional penalties in the form of revocation of office rights. However, its implementation still faces challenges such as political intervention, low integrity of law enforcement officials, and the potential overlap with the Corruption Eradication Law. Therefore, the success of criminal law reform requires the support of legal substance, legal structure, and legal culture that work in harmony.

This study examines the urgency of foreign nationals' (WNA) legal status and visa compliance in the vehicle rental business in Bali, as well as its impact on business disputes involving local entrepreneurs. The increasing number of international tourists visiting Bali has spurred the growth of vehicle rental services, yet it has also given rise to illegal practices by foreign nationals such as misuse of tourist visas for commercial purposes, tax evasion, and unfair business competition. This research adopts a normative juridical method using statute, conceptual, and case approaches, referring to key legal documents including Law No. 6 of 2011 on Immigration, Law No. 6 of 2023 on Manpower, Ministerial Regulation No. 21 of 2016, and Bali Regional Regulation No. 5 of 2016 on Tour Guiding. The findings highlight the vulnerability of rental contracts under Article 1548 of the Indonesian Civil Code, risks of breach of contract, and widespread violations of the Electronic Traffic Law Enforcement (ETLE) system, the penalties of which are imposed on rental owners. Nationality disparities and weak immigration oversight further undermine the effectiveness of law enforcement. This study concludes that legal protection for local business actors relies heavily on the legal clarity of WNA status, the appropriateness of 1 visa categories, and strong inter-agency coordination. The novelty of this research lies in integrating legal analysis of WNA legitimacy with a dispute resolution framework specific to the vehicle rental sector in Bali’s tourism landscape a perspective that has been largely overlooked in prior studies. The recommendations include strengthening rental contracts, enhancing coordinated supervisory mechanisms, and harmonizing civil and criminal law to establish a stronger deterrent effect.

Early marriage is a social phenomenon that remains prevalent in Indonesia and gives rise to various problems in family life. This article aims to analyze the implications of early marriage in light of the Code of Canon Law (CCL) Nos. 1055 and 1056 in the context of Catholic couples. This study employs a qualitative method with a descriptive-analytical approach through a literature review of books, scientific journals, and Church documents. The findings indicate that the CIC affirms marriage as a sacred covenant between a man and a woman oriented toward the bonum coniugum (the good of the couple), openness to children, and characterized by unity and indissolubility. In the context of early marriage, various implications were identified, such as emotional immaturity that triggers domestic conflicts, a high risk of divorce, low levels of education, and impacts on the health of mothers and children. Additionally, early marriage also indicates a weak understanding of the sacramental dimension and family responsibilities, including childrearing. Thus, CIC Nos. 1055 and 1056 provide an important normative foundation that marriage requires human, spiritual, and social maturity for the realization of a wholesome and prosperous Catholic family.

The development of digital technology has transformed trading patterns through the emergence of live shopping, a phenomenon that enables real-time interaction between sellers and consumers. Although it offers marketing efficiency, this model poses significant legal risks, including misleading information, promotional manipulation, and product non-conformity. This study aims to analyze legal certainty in consumer protection within live shopping transactions, examine the forms of business actors’ liability for consumer losses, and identify obstacles to regulatory implementation along with efforts to strengthen supervision.The research method employed is normative legal research using both a statute approach and a conceptual approach. The results indicate that legal certainty in consumer protection within this ecosystem is grounded in the integration of Law No. 8 of 1999 (Consumer Protection Law) as the lex generalis and Government Regulation No. 80 of 2019 (Electronic Commerce/PMSE) as the lex specialis, which recognizes the validity of real-time electronic contracts. The legal liability of business actors is strict liability in nature, in accordance with Article 19 of the Consumer Protection Law, and may also be construed as a tort (Article 1365 of the Civil Code) in cases involving distortion of visual information.However, the effectiveness of these regulations is hindered by the ephemeral nature of transactions and low levels of digital literacy. This study recommends the implementation of technology-based supervisory systems (suptech), strengthening the oversight function of platforms (PPMSE), and policy synchronization between the Ministry of Trade and the Ministry of Communication and Informatics in standardizing business actor verification to ensure the security of the digital commerce ecosystem.

The implementation of smoking prohibition policies in Islamic boarding schools continues to depend largely on manual monitoring methods, which often face challenges related to consistency and supervision range. This study aims to design an Internet of Things (IoT)-based cigarette smoke detection system as an alternative monitoring approach that is more effective, measurable, and sustainable. The system design combines an MQ-2 gas sensor with a NodeMCU ESP8266 microcontroller programmed through the Arduino IDE platform. When smoke levels detected by the sensor exceed the predetermined limit, the system automatically triggers a buzzer and LED as warning indicators while simultaneously sending monitoring data to cloud-based platforms such as Firebase or ThingSpeak for real-time observation through web interfaces. The research outputs include a comprehensive system design consisting of system architecture, electronic circuit schematics, flowcharts, and pseudocode that are systematically arranged to support future prototype development and implementation. Through this design, the proposed system is expected to provide an initial technological solution that can enhance the effectiveness of monitoring and enforcing smoke-free regulations within Islamic boarding school environments.

Protection of rape victims’ rights within the Indonesian criminal justice system continues to face significant challenges, particularly regarding the role of advocates, who have traditionally focused more on assisting suspects or defendants. This study aims to analyze and describe the role of advocates in protecting the rights of rape victims, including the rights to legal assistance, restitution, and physical as well as psychological recovery. The research employs a normative juridical approach through the analysis of statutory regulations and relevant legal literature. The findings reveal that the role of advocates in assisting rape victims remains limited due to the absence of explicit provisions in the Indonesian Criminal Procedure Code (KUHAP) granting advocates full authority to represent victims throughout all stages of criminal proceedings. Consequently, victims frequently encounter obstacles in accessing justice and obtaining adequate legal protection. This condition demonstrates the need for legal reform to strengthen the position and authority of advocates in representing victims within the criminal justice process. Strengthening the role of advocates is expected to improve legal protection, ensure the fulfillment of victims’ rights, and support the recovery process for rape victims in Indonesia.

Correspondence administration is vital for supporting operational efficiency in schools. However, manual management often leads to issues such as data retrieval delays, recording errors, and the risk of lost archives. This research aims to design and develop a Web-Based Administration Data Monitoring Information System using QR Codes at UPTD SMAN 3 Majene. The study employs the Research and Development (R&D) method with the Waterfall model, encompassing requirements analysis, system design, implementation, testing, and maintenance.The system involves three primary users: Admin/Administrative Staff, Teachers, and the Principal. QR Codes are implemented as digital identities to facilitate easier archive tracking and retrieval. Results indicate that the system enhances effectiveness and efficiency in correspondence management, accelerates letter request services, and simplifies data monitoring for school management. This system is expected to provide a solution for achieving orderly administration at UPTD SMAN 3 Majene. Furthermore, QR Code integration ensures document validity and digital archive security, supporting a more modern, transparent, and sustainable school governance transformation.

This study aims to analyze the legal protection of women's inheritance rights from the perspective of Indonesian civil law. The problems studied focused on the position of women as heirs and the extent to which the legal system provides guarantees of justice and equality. The research method used is normative juridical with a legislative and conceptual approach. Data was obtained through a literature study of legal regulations, doctrines, and court decisions relevant to inheritance issues. The results of the study show that normatively, civil law provides equal recognition of women's inheritance rights, especially in the Civil Code. However, in practice, there are still obstacles influenced by patriarchal culture and customary law that tend to place women in subordinate positions. This condition causes women to often experience difficulties in claiming or obtaining the proper share of inheritance. Therefore, it is necessary to strengthen regulations, harmonize national laws with the value of gender equality, and increase public legal awareness to ensure effective and fair protection for women in obtaining their inheritance rights.

This study aims to analyze the legal regulation of joint ventures in Indonesia as a form of Foreign Direct Investment (FDI) implemented through Limited Liability Companies based on Law Number 25 of 2007 concerning Investment, Law Number 40 of 2007 concerning Limited Liability Companies, and the Indonesian Civil Code. The research employs a normative legal method with a library research approach to examine legal provisions and concepts related to cooperation between foreign investors and domestic parties. The findings indicate the existence of structural imbalances between the parties, where foreign investors possess advantages in capital, technology, business experience, and access to information, resulting in asymmetrical bargaining power. This condition may lead to domination in decision-making, information gaps, and potential exploitation of domestic parties. Furthermore, existing legal protection is considered insufficient to fully implement the principle of equitable bargaining. Therefore, this study proposes a normative reconstruction through the application of principles of balance of power, good faith, transparency, and proportionality in joint venture agreements. The study also recommends preventive supervision through mandatory due diligence by the Financial Services Authority and the Investment Coordinating Board, including the standardization of contractual clauses and disclosure obligations, in order to create fair, sustainable joint venture relationships that protect national interests.

The development of information technology encourages government agencies to switch from manual systems to digital systems that are more efficient and accurate. One important aspect of office administration is recording the absence of village officials, which is often done conventionally so it is prone to errors, data manipulation, and takes longer in the recapitulation process. Based on these problems, this research designs and implements a Qr-Code based attendance system at the Palatta Village Government Office. The design of this system is to provide a faster, more accurate and transparent attendance solution by utilizing Qr-Code technology which is integrated into a web-based application. The system is built with main features such as user login, Qr-Code scanning, attendance history, as well as an admin dashboard to manage data and generate reports. The results of implementation and testing using the Black Box method show that all functions run as required. Testing on users also shows that the system is easy to use, speeds up the attendance process, and helps admins in monitoring and recapitulating data. Thus, this Qr-Code attendance system is suitable to be implemented as a substitute for manual methods to increase work efficiency and discipline in the village office environment.

Administrative letter services at the village (nagari) level are still largely conducted using conventional methods, resulting in various issues such as limited service hours, slow processing times, and risks of document loss. This study aims to develop a web-based letter service system with the implementation of digital signatures in Nagari Bukit Bais to improve efficiency, security, and transparency of public services. The research adopts the Agile Development method with an iterative approach, including requirement analysis, system design, implementation, and testing. The developed system enables citizens to submit requests online and is equipped with features such as officer verification, digital signing by the village head, automatic notifications, digital archiving, and document verification using QR Codes. Security mechanisms are implemented using SHA-256 cryptographic hashing and RSA-2048 digital signature algorithms, supported by X.509 digital certificates. Functional testing using end-to-end methods shows that all system features operate successfully without failures, while non-functional testing confirms the reliability of document security and integrity. The resulting system is able to automate the entire service process, reduce processing time, and ensure document authenticity and security. Therefore, this system can serve as a solution to support the digital transformation of public services at the village level.

The development of information technology has become a primary pillar in enhancing corporate operational efficiency, where rapid and accurate data integration significantly determines business competitiveness. Case study in PT Gawi Anjung Bersama (GAB) revealed that the company is facing operational constraints because the management of delivery orders and invoices still relies on conventional office applications such as Microsoft Excel and Word. This procedure causes hurdles in data sharing among staff and results in low information security due to the absence of integrated access control settings. This research aims to design and develop the Gawi Anjung Bersama Information System (SIGAB), a web-based system implementing the CodeIgniter framework. The system is developed using Waterfall model, encompassing stages from analysis, design, and implementation to testing. The research flow starts with problem identification, primary and secondary data collection, and functional and non-functional requirements analysis. The system is designed using Unified Modeling Language (UML) modeling, specifically Use Case and Class Diagrams, as well as Entity Relationship Diagrams (ERD) for the database. The system interface is designed as wireframes on Figma web. This system separates access rights into three main actors namely owner, administrator, and staff, to ensure data security. Blackbox testing results, conducted after the system was hosted, indicate that all functional features operate as intended. The implementation of SIGAB is expected to optimize the management of delivery orders and invoices at PT GAB.

This research is motivated by the escalating prevalence of illegal online lending practices in Indonesia, which generate a multitude of legal problems, particularly those concerning the validity of loan agreements and debt collection practices. The simplicity of access through smartphone applications, rapid processing times often approved within minutes and minimal administrative requirements have rendered these services immensely popular among the public. However, this accessibility also paves the way for unlicensed providers to operate unchecked, preying on desperate borrowers. The study aims to analyze the legal validity of illegal online loan agreements pursuant to the Indonesian Civil Code (KUHPerdata) and regulations issued by the Financial Services Authority (Otoritas Jasa Keuangan, OJK). Additionally, it examines the legal position of debt collection from a civil law perspective. A normative juridical method is employed, utilizing statutory and conceptual approaches, with qualitative analysis of the data. The results demonstrate that illegal online loan agreements fail to fulfill the requirements for a valid contract, especially regarding the legal capacity of the parties and lawful cause, categorizing them as null and void by operation of law. Nevertheless, in practice, unlicensed providers continue debt collection efforts, frequently employing methods that violate the law, such as harassment and intimidation. This reveals a significant gap between legal norms and field implementation. The implications emphasize the critical need for robust law enforcement, enhanced consumer protection mechanisms, and stricter oversight of fintech lenders to establish legal certainty and justice for society.

This study aims to design and develop a web-based Eweta Village Tourism Promotion Information System using the Codeigniter Framework to facilitate the dissemination of information on village tourist destinations to the community and tourists. Lokomboro Village has natural and cultural tourism potential that has not been optimally managed, especially in terms of digital promotion. This system was built using the Waterfall software development method, which includes the stages of requirements analysis, system design, implementation, testing, and maintenance. This web-based system is equipped with features such as tourist attraction information, photo galleries, tourism activity schedules, and contact details for managers. The CodeIgniter Framework was chosen for its advantages in MVC structure, which facilitates code management, security, and application scalability. Testing results show that the system is capable of displaying promotional information interactively, responsively, and accessible at any time by interested users, making it suitable for use as a tourism promotion medium for Pada Eweta Village.

This research aims to examine the provisions and status of probation as a principal punishment in the National Criminal Code, as well as its relevance to achieving the objectives of reforming the penal system in Indonesia. The research design employed is normative legal research using a legislative and conceptual approach. The data utilized consists of secondary data obtained through a literature review, analyzed using qualitative descriptive techniques. The results of the research show that probation under Law No. 1 of 2023 on the Criminal Code has been established as one of the principal penalties that can be directly imposed by a judge, thus no longer merely a component of conditional sentences as in the old Criminal Code. This regulation reflects a paradigm shift in sentencing from a retributive approach toward a rehabilitative and restorative approach by providing offenders with the opportunity to remain within the community under supervision. However, its implementation still faces challenges, including the absence of comprehensive technical regulations, potential conflicts of norms, and institutional limitations in carrying out supervision. Therefore, supervised probation holds significant relevance as a more humane sentencing alternative, although it requires strengthened regulations and a supervision system to ensure its effective and consistent application.

Adoption is an act of adopting a child which, according to legal regulations, transfers the rights and responsibilities of the child from their biological parents to their adoptive parents. This study aims to examine the legal framework governing the legal determination of adopted children. This research was conducted using a juridical-normative research approach. This study focuses on reviewing the status of an adopted child, including their position in obtaining inheritance rights, using a review of the Civil Code and other applicable regulations. Based on the analysis that has been carried out, the position or status of a child adopted by adoptive parents has a legal status if it is carried out through applicable legal procedures, which means that the child has equal rights to biological children. This research is expected to contribute to providing references for firmness in family law that is more certain and does not harm any party.

This study analyzes law enforcement related to the application of the death penalty with a ten-year probation period as stipulated in the Criminal Code (KUHP). The results of the study show that the enforcement of the conditional death penalty is carried out in three stages, namely the formulation, application, and implementation stages. The formulation stage is reflected in the establishment of the death penalty as a special alternative and conditional punishment in Law Number 1 of 2023, the application stage is carried out through the application of norms by law enforcement officials, while the implementation stage relates to the execution of court decisions against convicts. The change in the construction of the death penalty from an absolute primary punishment to an alternative and special conditional punishment has fundamental legal implications for the criminal justice system in Indonesia, especially with the existence of discretion for judges and law enforcement officials to assess the possibility of changing the type of punishment based on the convicted person's remorse and efforts to reform themselves during the probation period.