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This research examines the matrilineal inheritance system in Minangkabau society through the perspective of maqasid al-sharia and the principles of Adat Basandi Syarak, Syarak Basandi Kitabullah (ABS-SBK). The matrilineal inheritance system which transmits inheritance through the mother's lineage is considered controversial in relation to Islamic law which is based on faraid. Through a qualitative approach using literature study and interview methods, this research analyzes the fatwas of Minangkabau female clerics which emphasize that the customary system can be in harmony with the main objectives of Islamic law, such as the protection of life, offspring, property and religion. The results show that female ulama see this system as a form of contextual ijtihad that considers justice and social benefit. The distinction between high inheritance (custom) and search property (divided according to Islamic law) reflects the flexibility in combining adat and sharia. Therefore, the Minangkabau matrilineal inheritance system is not only considered valid according to custom, but is also relevant to maqasid al-sharia.

Patent rights are a part of Intellectual Property Rights (IPR) that provide legal protection for inventions in the field of technology. With the rapid development of the times and technological advancements, the protection of patent rights has become an increasingly crucial issue. This is due to the growing number of patent infringements, particularly in the digital and medical device sectors, which often involve major global technology companies. One such case is the patent dispute between Apple Inc. and Masimo Corporation. The patent conflict between Apple and Masimo serves as a concrete example of how disputes over the ownership of technology can lead to complex legal issues, while also demonstrating how legal systems in developed countries respond to alleged patent infringements relatively effectively. On the other hand, Indonesia, as a developing country, still faces various challenges in resolving patent disputes, ranging from policy aspects and law enforcement processes to the capacity of existing institutions. This study aims to evaluate the extent to which Indonesia's patent legal system has been able to meet the demands of the times. Through the analysis of the Apple vs. Masimo case, this paper seeks to examine how Indonesia’s patent dispute resolution system can be strengthened to address global dynamics.

This study aims to examine the legal protection of property brought into marriage that is mixed with joint property as a result of joint management in a marriage. In many cases, this mixing causes unclear legal status of the assets, especially during divorce or inheritance division. This study uses empirical normative legal methods with a qualitative descriptive approach. The data obtained were analyzed using data reduction, data presentation, and conclusion drawing techniques. This study shows that legal regulations in Indonesia related to the protection of property brought into marriage that is mixed with joint property due to joint management in marriage, and highlights the inconsistency of court decisions in such disputes and their impact on household economic stability. Law Number 1 of 1974 concerning Marriage and the Compilation of Islamic Law have distinguished between property brought into marriage and joint property, practice in the field shows that mixing of property due to joint management often causes conflict during divorce. Inconsistency in court decisions arises due to the unclear norms in Article 37 of the Marriage Law which provide room for different interpretations by judges. This has an impact on legal uncertainty and potential injustice, especially for parties who are socially or economically weaker. Mixed property disputes also affect household economic stability, exacerbate social inequality, and cause psychological burdens for family members, including children. This study recommends the need for more detailed regulatory updates, the issuance of technical guidelines by the Supreme Court to unify decision standards, and increased legal education for the community to prevent conflicts through marriage agreements.

Globalization has increased the interest of Foreign Nationals (WNA) in owning property in various countries, whether for residential purposes, holidays, or investment. Indonesia and Malaysia, as two Southeast Asian nations, have different regulatory approaches regarding property ownership by WNA. This research aims to analyze the legal provisions, identify similarities and differences in regulations, and evaluate their impact on the investment climate and legal protection for WNA in both countries. The research method used is comparative law, focusing on the legal basis, forms of ownership, limitations, and legal protection. The findings indicate that Indonesia tends to be protective of land ownership by foreign parties, strictly regulated through the Basic Agrarian Law (UUPA) No. 5 of 1960, which limits WNA to Right of Use (Hak Pakai) and Right to Build (Hak Guna Bangunan/HGB) with limited durations. In contrast, Malaysia adopts a more liberal and pro-investment approach, allowing WNA to own property as freehold or leasehold based on the National Land Code 1965 and the Malaysia My Second Home (MM2H) program. The implications of these differences are that Indonesia's restrictive policies may reduce the attractiveness of foreign investment due to legal ambiguity and limitations in secondary transactions. Meanwhile, Malaysia offers greater legal certainty and economic appeal through freehold ownership, despite social risks such as rising property prices. This study concludes that Malaysia has a more foreigner-friendly system for property ownership, while Indonesia maintains a cautious principle. It is suggested that Indonesia consider agrarian reforms that are more transparent and provide legal certainty that balances national interests with foreign investment attractiveness.

According to Article 2 paragraph (1) of Law Number 1 of 1974 concerning Marriage, a marriage is considered valid if it is conducted according to the laws of the respective religion and beliefs. Marriage is not merely a physical union but also an emotional bond, and fundamentally follows the principle of monogamy. In the legal framework of marriage, state protection—particularly for wives and future children—can only be guaranteed if the marriage is consciously conducted in accordance with Law Number 1 of 1974, which includes the requirement that the marriage be officially registered under applicable laws and regulations.If a marriage is not registered, the state cannot provide legal protection concerning marital status, joint property, inheritance, and other rights arising from the marriage. To establish a wife’s rights, it must first be proven that a legal marriage exists between her and her husband. One legal consequence of an unregistered marriage is that neither the wife nor any children from the marriage have the right to claim support or inheritance from the husband. Islamic inheritance laws allocate shares specifically to blood relatives.Unregistered marriages—often called sirri, kiyai, or syar’i marriages—are conducted according to religious rules or customs but are not registered with the Marriage Registrar. In Chinese customary law, property acquired during marriage is influenced by a patrilineal kinship system, where the wife’s status is governed by the husband’s family law. Generally, the husband, as head of the household, controls all marital property and has absolute rights to use it without needing the wife’s consent, including in transferring joint property.

 A brand is one of the most valuable intellectual assets in the business sector, serving not only as a product identity but also as a reflection of reputation and quality. However, the increasing phenomenon of brand infringement indicates the urgent need for stronger and more effective legal protection. Brand infringement brings various negative consequences, including loss of consumer trust, unfair competition, and significant financial losses for brand owners. This study aims to analyze brand infringement from a criminological perspective, identify causal factors, and evaluate the role of law in addressing such violations. The research employs normative legal methods through analysis of statutory regulations, legal and criminological theories, and a literature-based approach using secondary data obtained from books, journals, and legal documents. The findings reveal that criminology provides relevant insights through theories such as Rational Choice Theory, which explains that perpetrators calculate the risks and benefits before committing the violation, and Anomie Strain Theory, which highlights how the inability to achieve economic or social goals legally can drive individuals or groups to commit brand infringement. The classification of violations includes imitation, counterfeiting, misuse, and unlawful exploitation of brand rights. Several causal factors were identified, including weak legal supervision, limited enforcement, and the high consumer demand for cheaper counterfeit products. Furthermore, the study underlines the essential role of the criminal justice system in addressing brand infringement through the enforcement of criminal, civil, and administrative sanctions as regulated under Law Number 20 of 2016 on Trademarks and Geographical Indications. In conclusion, brand infringement is not merely a legal issue but also a criminological problem that requires comprehensive handling through effective law enforcement, stronger supervision, and increased public awareness to protect intellectual property and ensure fair business practices.

The heirs' clause in the credit agreement raises legal problems because it concerns the attachment of third parties. This study aims to analyze the inclusion of heirs' clauses based on privity of contract and its legal implications for legal protection for creditors and heirs. Normative juridical method has used with regulatory and conceptual approach. The results shown that the heir's attachment clause in a credit agreement does not necessarily bind the heirs automatically because the privity of contract limits the engagement only to the parties who made the agreement. This is based on the existence of the principle of saisine in Civil Law and the principle of ijbari in Islamic Law where the heir automatically becomes the owner of the heir's legacy. However, the attachment that arises is only limited to the management of heritage property before it is distributed as inheritance. The applicability of the clause must also take into account whether there is an inheritance by the heirs, because the liability for the heir's debts only arises if the inheritance is received. If the inheritance is rejected, the creditor cannot impose payment obligations on the heirs even though there is an attachment clause. On the other hand, Islamic Law has emphasized that inheritance received by heirs is only inheritance that has been reduced by burdens, including the heir's debt. Therefore, the inclusion of the heir's clause is only a notification that reminds the heirs that there are still unfulfilled heirs' obligations, namely debts.  

Intellectual Property (IP) plays a crucial role in fostering fair business competition. Trademarks as a element of IP serve as distinguishing identifiers that guarantee product quality. In addition, trademarks function as marketing tools in competitive markets and provide protection against bad faith actions by other parties. To obtain legal protection, a trademark must be registered in accordance with statutory requirements. A trademark application may be rejected if these requirements are not fulfilled. A common reason for rejection is the existence of substantial similarity to a previously registered mark or an earlier-filed application for similar goods and/or services. Therefore, clear and consistent standards for determining substantial similarity are essential to ensure legal certainty for applicants.

Bankruptcy as a debt settlement mechanism in Indonesia has a significant impact on all debtors' assets, including intellectual property rights such as trademarks. In practice, many companies have licensed trademarks to third parties before being declared bankrupt, resulting in legal uncertainty regarding the validity of the license agreement and protection for the licensee. This study aims to examine the implications of bankruptcy on the validity of trademark licenses and analyze the legal position of licensees according to the Bankruptcy Law. The research method used is normative juridical with statutory and conceptual approaches, as well as qualitative analysis of primary and secondary legal materials. The results show that the rights to the licensed trademark remain part of the bankruptcy estate and are under the management of the curator. The license agreement can be continued if it benefits the bankruptcy estate, but can be terminated by the curator if it is considered burdensome. The legal position of the licensee is highly dependent on the recording of the agreement at the DJKI and the policy of the curator. The implications of this research emphasize the need for clearer regulations to provide legal certainty and balanced protection for all parties involved in bankruptcy.

This research discusses the application of Islamic economic principles during the leadership of Al-Khulafa' Al-Rasyidin, namely Abu Bakar Ash-Shiddiq, Umar bin Khattab, Uthman bin Affan, and Ali bin Abi Talib. The focus of the study lies on the application of sharia values such as justice, honesty, zakat, and wealth distribution in economic policy and governance. The study found that the caliphs consistently implemented Islamic economic principles in state financial management, zakat collection and distribution, market supervision, and protection of property rights. Such implementation proved the effectiveness of the Islamic economic system in creating social justice and public welfare. The application of Islamic economic principles in financial management has an important role because it provides a strong ethical and moral basis, supports the creation of a sustainable economy, and emphasizes justice in the distribution of wealth in society. These principles serve as guidelines for individuals to manage their finances wisely so as to bring benefits not only to themselves, but also to their social environment. By applying these values, wealth inequality can be prevented and a stable and fair economic system can be built. Islamic economics also emphasizes the importance of transparency and honesty in every financial transaction. By avoiding unethical practices such as usury and excessive speculation, individuals can maintain integrity and create a financial system that is aligned with moral values. In addition, Islamic economic principles contain a high value of social responsibility, reflected in the teachings on Zakat, Infaq, and Sadaqah which encourage individuals to participate in social development and help those in need. Therefore, managing personal finances based on these principles not only ensures individual financial sustainability, but also has a positive impact on the well-being of society at large.

Protection of well-known trademarks is a crucial aspect of intellectual property systems, especially in the face of global trade dynamics and the development of digital technologies. This study aims to analyze the effectiveness of legal protection for owners of well-known trademarks from the perspective of court decisions in Indonesia. Using a qualitative method based on a normative juridical approach and case studies of court rulings (including the Hugo Boss and Superman cases), this research reveals that trademark protection in Indonesia remains reactive, dependent on litigation, and has not fully prevented the registration of confusingly similar trademarks by parties acting in bad faith. Moreover, the absence of objective standards for defining well-known trademarks and indicators of bad faith weakens legal certainty. On the other hand, courts have begun to show consistency in rejecting trademark registrations that violate the principles of well-known trademark protection, although this has yet to be supported by an adequate administrative system from the Directorate General of Intellectual Property (DJKI). The study recommends the establishment of technical regulations, strengthening DJKI’s capacity, and integrating protection systems with international norms as strategic steps to reinforce legal protection for owners of well-known trademarks in Indonesia.

Divorce is a complex social phenomenon with significant impacts on families, especially children. In Islamic law, divorce is permitted as a last resort when household life cannot be maintained, although it is considered the most hated lawful act by Allah. This study analyzes divorce from the perspective of Islamic family law, focusing on the causal factors, legal impacts, and preventive measures. The main factors of divorce include disharmony in relationships, economic problems, the presence of a third party, and domestic violence. The legal impacts include child custody, division of property, and maintenance obligations, which are often not fulfilled by the ex-husband, causing inequality in legal protection for women and children. Recommended preventive measures include premarital education, family counseling based on Islamic values, and strengthening mediation institutions such as BP4. This study uses qualitative methods with literature analysis to provide a comprehensive understanding of divorce in Islamic law and its implications in Indonesia.

In banking practice, cooperation agreements between banks and developers for providing Kredit Pemilikan Rumah (“KPR”) facilities often incorporate the buy back guarantee scheme as a form of security against the risk of debtor default. This scheme obligates the developer to repurchase the property as collateral in case of a loan default. The buy back guarantee scheme in KPR is essential for banks as a risk mitigation mechanism to ensure the recovery of disbursed funds, reduce the potential for non-performing loans, and provide legal certainty and protection against losses caused by debtor default. Therefore, it is necessary to analyze the legal protection available to banks bound by cooperation agreements for the provision of KPR facilities under the buy back guarantee scheme, taking into account the legal position of the banks and developers, as well as examining legal certainty and dispute resolution mechanisms applicable in cases of loan default.

The 2011 Tohoku tsunami stands as one of the most catastrophic natural disasters in Japan’s history, resulting in massive loss of life, extensive property damage, and severe disruption to infrastructure along the northeastern coast. This study aims to examine the physical characteristics of the Tohoku tsunami and critically evaluate the factors that led to the failure of Japan’s disaster mitigation systems. Utilizing an essay-based synthesis approach, this analysis draws from a range of previous research findings and post-disaster assessments. The tsunami was caused by a 9.0 magnitude megathrust earthquake off the eastern coast of Honshu, generating wave heights that exceeded 10 meters in several locations. The tsunami’s immense energy produced destructive currents that penetrated deep inland, surpassing the protection capabilities of existing coastal defenses.The study identifies several contributing factors to the mitigation system’s shortcomings: the design limitations of seawalls, which were not built to withstand such extreme events; delays and limitations in the early warning system’s ability to reach all at-risk populations in time; and inadequate public preparedness, as the event exceeded historical precedents and training scenarios. These vulnerabilities highlight the need for integrated, adaptive disaster risk management strategies.Drawing lessons from Japan’s experience, this study proposes recommendations for improving tsunami mitigation efforts in Indonesia. Key suggestions include reinforcing and redesigning coastal defense structures, advancing early warning technologies such as seabed sensors and coastal radar systems, and enhancing disaster literacy through public education and scenario-based training. By adopting a science- and technology-driven approach, Indonesia can strengthen its resilience and reduce vulnerability among coastal populations facing future tsunami threats.

This study aims to analyze the marriage agreement as an instrument of legal protection for both parties in a marriage, especially in terms of property ownership and financial responsibility. This study uses a sociological juridical method, with primary data obtained through interviews with a notary and secondary data from various legal literature, including Law Number 1 of 1974 concerning Marriage, the Civil Code, and the Constitutional Court Decision Number 69/PUU-XIII/2015. The results of the study indicate that the marriage agreement plays a role in preventing potential legal conflicts in marriage, both in monogamous and polygamous systems, and provides legal certainty for third parties, such as creditors or heirs. This agreement not only protects the rights and obligations of the husband and wife, but also ensures legal clarity in the division of assets and financial responsibility during and after the marriage.

Consumer dispute resolution in Indonesia is an increasingly relevant issue, considering the high dynamics of transactions that occur in the goods and services sector, including in the property sector. Consumers, as the weaker party in business transactions, often face problems related to the quality of goods/services received, delays, unilateral cancellations, or even failure in property development. Therefore, resolving consumer disputes is very important and requires adequate legal protection. This type of research is normative juridical research. Normative research is literature research by examining theoretical approaches and concepts that examine consumer disputes. Normative juridical research is legal research that places law as a building system of norms. Problems arise when consumers in good faith have paid all Down Payment obligations, but the business actor actually takes a unilateral decision to cancel the apartment construction project. Consumers who have invested funds amounting to IDR 307,530,900 are trying to get a refund, but the business actor does not show responsiveness and good faith in the refund process. This situation finally forced consumers to take legal action by filing a lawsuit with BPSK Medan City on December 5 2022. This case is a clear example of the application of consumer protection and the importance of BPSK as an alternative for resolving disputes outside of court. This decision also reflects the principles of justice and legal certainty in consumer disputes, where agreed consumers can obtain their rights through an arbitration mechanism.

This study compares the legal protection of pre-project selling property contracts in Indonesia and Singapore, focusing on the regulation of the position of PPJB, consumer protection, and the mechanism of transfer of ownership and payment. The approach used is normative with legislative and comparative methods, relying on primary and secondary legal materials through literature studies. Descriptive and comparative analysis reveal significant differences in the legal arrangements of the two countries. In Indonesia, Law No. 8 of 1999 and Law No. 1 of 2011 regulate pre-project selling through PPJB, but supervision is weak so that it often harms consumers, such as in the case of Meikarta. In contrast, Singapore has more detailed regulations, such as the Housing Developers (Control and Licensing) Act, which requires escrow accounts for consumer funds and strict payment schemes. Supervision and law enforcement in Singapore are more effective with strict sanctions against violations, reinforced by jurisprudence such as the Jurisprudence of Tan Eck Hong v Maxz Universal Development Group Pte Limited (2012) SGHC 240. This study concludes that legal protection in Singapore is more advanced than Indonesia, providing important recommendations for property law reform in Indonesia to prevent disputes and abuse in property transactions.

The Meikarta project as the "Shenzhen of Indonesia", is an ambitious initiative by the Lippo Group to develop a large property project in Cikarang, Bekasi Regency, West Java. Although it offers various modern facilities, this project faces various obstacles, including construction delays and uncertainty about the fate of consumers who have made payments. This problem is further complicated by allegations of violations of the law related to building permits (IMB) and non-compliance with the Regional Spatial Plan (RTRW), as well as bribery cases involving local government officials. This study aims to examine the legal protection provided to consumers in relation to the validity of agreements made in the Meikarta project, with a focus on the legal implications of unlawful acts and legal uncertainty due to corruption cases. This study uses a qualitative method with a normative legal approach, which examines applicable legal provisions, and an empirical approach, which examines how the law is applied in practice, as well as data collection techniques through case studies and legal literature. The results of the study indicate that there is abuse in the validity of contracts that are detrimental to consumers, as well as the negative impact of legal uncertainty caused by corrupt practices. Legal protection for consumers, including lawsuits and government intervention, is essential to prevent further losses. It is hoped that this research will contribute to the formation of better legal policies and more effective consumer protection in Indonesia.

The Unitary State of the Republic of Indonesia is a country of law that guarantees justice and protection for its citizens. This protection is stated in the 1945 Constitution Article 28G paragraph (1), namely: "Everyone has the right to protection of themselves, their families, their honor, their dignity, and their property under their control, and has the right to a sense of security and protection from the threat of fear to do or not do something that is a basic human right". Fraudulent investment is an act of investment fraud, where the perpetrator asks for funds to be invested in a business that is in fact illegal and does not have a permit from the competent authority. This study aims to determine the form of legal protection for victims and to find out how to avoid fraudulent investment. The research method used is qualitative by using the type of literature study of journal analysis, or other media to become a literature reading that is arranged coherently and neatly. This literature study will look for various relevant articles by citing from various sources.

Inheritance law in Indonesia has three directions, namely customary law, civil law and Islamic law. This journal article discusses one of the inheritance laws, namely customary inheritance law. The writing of this journal article aims to examine how the protection and process of obtaining inheritance rights for women in Balinese Hindu customary society, which adheres to the patrilineal system. The research method used is a normative legal research method with two approaches, namely a statutory approach and a conceptual approach. Data collection uses doctrinal which is by examining, analyzing and identifying knowledge contained in reading sources in the form of reference books, journals or previous research as research support. Based on the results of the study, it shows that under customary inheritance law, women are generally not entitled to inherit property, but only enjoy the inheritance of parents or husbands. However, they can obtain inheritance rights through grants, marital gifts (jiwa dana), or changing their status to male (sentana rajeg).