Crime or criminal acts, apart from being a humanitarian problem, are also social problems, they are even stated to be the oldest social problem . When carrying out crime prevention efforts, it must be seen in the context of overall social policy, the aim of which is to provide community protection and achieve community welfare. The aim of this research is to find out and analyze the relationship between criminal policy and social policy. This research was conducted descriptively analytically. Criminal policy is one of the fields of modern criminal law ( modern criminal sciences ) which consists of several components, namely criminology, criminal law, science and at the same time art . . Criminal policy as an effort to overcome crime has the main objective of protecting and creating community welfare. Achieving a level of social welfare and social protection is a national goal in implementing social policy .

The crime of terrorism is a form of crime with an international dimension that is very frightening to the public. Terrorism is a crime against humanity which is classified as an extraordinary crime because it has succeeded in creating chaos based on religion, sect or organization. This crime against humanity is regulated in Law of the Republic of Indonesia Number 5 of 2018 concerning Terrorism Crimes. Terrorist networks that are difficult to trace and have wide access make the problem of terrorism difficult to eradicate. Easy access between countries is one of the reasons why it is difficult to break the chain of terrorist networks. So efforts are needed through bilateral, regional and international cooperation to eradicate terrorism. The research method used in this paper uses normative legal research based on legal theories. By taking a legislative approach through literature study. This research aims to find out what causes perpetrators to commit criminal acts of terrorism and to find out what form of criminal law accountability exists for perpetrators who participate in criminal acts of terrorism in Indonesia.
 

Electroplating was the process of coating metal surfaces using the electrochemical method. We used alkaline zinc (Zn2+) plating that was anti-corrosion coating, cheapest, evenly adhesion, as well as better-looking crushing. This study aims to test and measure the thickness of the layer on spark plugs with variations in different electrical currents 300, 400, and 500A and increased hours during the coating process, investigate the corrosion resistance of white rust on the surface and analyze the changes in alkaline zinc concentration and temperature that affect the thickness of the layer, respectively. The results, such as 1st sample 13 pcs, 300A, and thickness of 7.26-micron with white rust 9 pcs. 2nd sample 13 pcs, 400A, and thickness of 9.15-micron white rust 5 pcs. 3rd sample 13 pcs, 500A, and thickness of 12.75-micron white rust 3 pcs. The high electric current (500A) and 45 hours of the experiment would influence the lowest white rust corrosion level. The high alkaline zinc solution with an optimum 36°C solution temperature and 500A electric current would undoubtedly deposit the white rust until 3 pcs.