Copyright © 2023 Journal Equity of Law and Governance Page 52 Journal Equity of Law and Governance Vol. 3, No. 1, April 2023 P ISSN: 2775-9512 https://www.ejournal.warmadewa.ac.id/index.php/elg Criminal Liability for the Abuse of a New Type of Narcotics (Alpha Propylaminopentiophenone) in Indonesia Ni Gek Ayu Septi Nohanaa, I Gusti Bagus Suryawan, I Wayan Rideng Universitas Warmadewa gekayuseptinohana@gmail.com Abstract - With the rapid development of information technology, the types of Narcotics are increasing, one of which is Alpha Propylaminopenthiophenone, which is a new type of Narcotics that is not yet contained in statutory regulations, so there is a void in norms. Propylaminonepenthiophenone) can be held criminally responsible? 2. What are the arrangements for new types of narcotics users such as Alpha Propylaminonpentionefenone in the future? The use of the method in this study is a type of normative legal research with a statutory regulatory approach, the source of data is through legislation which includes Law Number 35 of 2009 and the purpose of this study is to determine criminal liability for users of a new type of narcotics (alpha propylaminopenthiophenone). in Indonesia. The results of the study can be explained that Alpha Propylamininpenthiophenone has not been regulated in Indonesian Legislation and Users of these substances cannot be held criminally responsible because the Indonesian legal system adheres to the principle of legality, so with regard to this it is necessary to regulate (Alpha Propylaminonpenthiophenone) so that users can be held criminally responsible and should reform the Narcotics Law which states that all substances containing narcotic substances are considered narcotics. Keywords: Criminal Liability, New Psychoactive Substance., Legality Principles. VI. INTRODUCTION In Indonesia, the problem of narcotics and psychotropics has increased due to the emergence of new addictive substances known as New Psychoactive Substances (NPS). To avoid legal action, the manufacture of NPS involves the chemical composition of substances covered by Law no. 35 of 2009 concerning Narcotics. The term drug is no longer a taboo or new to society considering that there is so much news broadcast through television, newspapers and even the internet that the spread of drugs continues to increase significantly from year to year even though regulations regarding drug abuse have been established, but this cannot reduce the level of distribution and use of the drug Adiwijaya, (2019). The abuse and distribution of these substances cannot be prosecuted by law. For example, Raffi Ahmad used 3,4-Methylenedioxymethcathinone or Methylone in an incident that occurred in 2014. There are no regulations governing these NPS substances. Interpretation is very necessary because of the development of the variety of narcotics so that legal needs and a sense of justice are also transformed in harmony with the norms prevailing in society, so in order to grant all demands so that they are in accordance with the various values that are developing and believed by the community concerned, Adami Chazawi, (2018). In essence, the Narcotics Regulations state that this method of law enforcement can be applied by the Minister of Health. Mentioned in Article 6 Paragraph (3) explains regarding