Indonesia's land is not doing well now, because there is a lot of pollution, especially air pollution, which is very worrying. It was proven that in Jakarta in 2021, for 3 (three) days, the sky in Jakarta was covered with fog, which turned out to be pollution. It was created by the people of Jakarta, starting from factory fumes, then motor vehicle fumes. Based on the example above, there are actually regulations that regulate the monitoring and/or control of fumes coming out of factories or motorized vehicles, but up to now there are still many people being overlooked regarding air pollution. The method used in this research is normative juridical or library research, with a statutory approach to issues. That protection for the public against air pollution in general already exists in Law Number 32 of 2009 concerning Environmental Protection and Management Jo. Government Regulation Number 41 of 1999 concerning Control of Air Pollution, but the implementation regarding law enforcement by Environmental Law Enforcers is not optimal, so there is a need for cooperation between the community and the government.

Firearms are a big problem when their use can be regulated for civil society, because simply a freedom with big risks will cause other big problems. Providing a sense of security and personal protection by giving rise to abuse will certainly create confusion both for those who regulate it and those who will clearly feel the dangerous impact. This research aims to determine the factors, efforts and obstacles in tackling the crime of possessing firearms without a permit. The research method used in this research uses a normative juridical research approach with a problem approach using a statutory approach. The findings in this research are that a person's internal and external factors greatly influence the efforts that can be made to prevent and overcome criminal acts of possession of firearms and from all forms of efforts made, various obstacles are also found that are present, from the government's quick response in dealing with it to low awareness. the community has an important role in overcoming these legal issues.

The case of Rempang Island is an example of the many cases of violence perpetrated by repressive law enforcers against civilians in Indonesia, where violence is in direct contact with criminal values. So clear knowledge is needed regarding the impact of authority used improperly by law enforcement officials. This research uses a normative juridical research method with the problem approach used is a statutory approach, a concept analysis approach, and a case approach. The research results reveal that there are limitations for law enforcement officers in carrying out their duties assigned by the state, including preventive measures in providing supervision and security so that the human rights of civilians can still be protected.