CSS subject for police. Which subject should I choose for CSS police group?

CSS Subject For Police

There is no course/subject limitation for joining any of Central Superior Services (CSS) groups. Aspirants are free to opt any subject of their choice for CSS exam written part. Selection to any of CSS groups is merely based on merit.    

Some groups such as Police Services, Administrative Services and Foreign Services are highly demand groups. To be selected in one of these groups, you should score good marks in written part of the competitive exam.

Optional Subjects Of CSS Toppers

Which subject should I choose for CSS police group?

However if an aspirant still want to know which sub-ject he/she should choose for CSS police group, he/she should opt any of these three subjects;

Criminology

Sociology or

Psychology

Since police deals with crimes and culprits, these subjects, to my knowledge, touches that part somehow.