Hey!

As you know criminal psychology  is also known as forensic psychologist are basically mental health professionals who want to work with justice system.

For pursuing this below the education qualification you need to do so-

1. you need a master degree in field of criminal psychology, forensic psychology clinical psychology.

2. A state-issued license is required.

3. problem-solving, and verbal and written communication skills, analytical, observational.

Hope it helps!

Good luck!