Abstract: There have been so many sexual crimes in Indonesia lately and several of the perpetrators are even police officers themselves who are actually law enforcement officials that have to protect people from criminal acts. Therefore, IPW (the Indonesian Police Watch) insists that sex offenders have to be punished maximally and castrated. Castration penalty is a type of punishments imposed upon perpetrators of sexual crimes; it is formulated in PERPU No. 1/2016 which is not found in the Criminal Code. Castration penalty which is formulated in PERPU will be implemented after a convict has been imprisoned for 2 years. Therefore, this castration penalty is a supplementary punishment for convicts who have undergone 2 year-imprisonment as his principal punishment. The objective of this research is first to find out the types of punishment stipulated in legal provisions concerning sexual crimes prior to the issuance of PERPU No. 1/2016; secondly to find out people’s perception on the formulation of castration penalization imposed upon sex offenders; thirdly to find out which institution/agency that should be the executor of this castration penalty. The research used normative sociological approach. A normative research uses legal provisions and comparison approaches. Sociological research was done in Medan. The research population was the inhabitants who Dwelled in Medan, taken by using cluster random sampling technique. The groups of people who were studied were religious group, adolescents and women, medical group (Indonesian Doctors Association) and legislative group (Regional Representative Council) by using questionnaires. The data were analyzed qualitatively. The result of the research showed that, first, sexual crimes have been regulated in the Criminal Code and in the other legal provisions outside of the Criminal Code. The penalty which is formulated in this law is imprisonment there has been no castration penalty in it so far. Secondly in general, the Indonesian people oppose to castration penalty imposed on sex offenders even though it is imposed after the convicts have undergone principal imprisonment. Thirdly, if the castration penalty is imposed on sex offenders, people suggest that the executors be doctors or specialists who are professional in their field.