Commerce

Criminology is the branch of science which deals with the crime and the prevention of crime. Forensic science is only the part of criminology. Criminology is directly referring to the crime. It is one of the challenging fields.
The courses in the field of criminology are offered in range of certificate to doctoral level programmes as per the following:
Certificate Course (forensic Science)
Diploma Course (Cyber Crime)
Diploma Course (Forensic Science and Criminology)
Bachelor Degree Course (Forensic Science and Criminology)
Masters Degree Course (Forensic Science and Criminology)
Masters Degree Course (Forensic Science and Criminology Research)
Post Graduate Diploma Course (Forensic Science and Criminology)
If you want to enter CID then you can go for this
The candidates must write the UPSC exams which are every year.There are two types of posts under CID,they are:
1.Constable post.
2.Sub Inspector post and higher officer posts.
The Eligibility details of the constable post are as follows:
* Candidates must have completed 10th or 12th with atleast 55% to 60% of marks.
* Must have 18 years of Age.
* Maximum 30 years of age for General category students.
Source: Can a commerce student do Criminology course for CID or CBI? | Government Jobs http://governmentjobsalerts.com/can-commerce-student-do-criminology-course-cid-cbi-74841.html#ixzz4979UpCtY