Perfect crimes are crimes that are undetected, unattributed to an identifiable perpetrator, or otherwise unsolved or unsolvable as a kind of technical achievement on the part of the perpetrator. The term is used colloquially in law and fiction.
How can forensic psychology knowledge be used to solve a perfect crime?
This is an interesting question.
If a particular crime can be detected and solved, then it's no more a perfect crime.
However, I'm open to correction and enlightenment on this particular topic.
Thank you.