As you want to become CID Officer after completing 12th from non medical stream, so sorry but you are not eligible for that.

Firstly you will have to complete your graduation and then you can apply for this post through UPSC Indian Civil Services Exams.

Eligibility:

Nationality:
Candidate should be citizen of India.

Qualifications:
Candidate must have a Bachelor degree in any stream from recognized university.

Age Limit:
Minimum age is 20 years.
Maximum age is 27 years.

Age Relaxation:
3 years for OBC categories
5 years for SC/ST categories


Physical Standards:
Height
165 cms

Chest
Unexpanded
80cms

Expanded
85cms

Selection Procedure:
Candidates will be selected on the basis of written test and personal interview.

And some posts required qualifying the physical effective tests.