I will be very honest here. I had just one average book with me by some publisher. A complete copy paste of online lectures. And You know what I did.

I didn't bother buy foreign writers or more sophisticated local ones. I went directly to youtube. Watched and listened to the criminal cases proceedings and interviews. And studied criminology online at study.com.

There you go. My advise is to watch and learn from real crime investigators who appear on shows. I found plenty of great stuff on net. So great, That I regret why didn't they ask any smart question so I could enlighten them aboht the researches done on various criminology subjects. Learning about serial killers was my favorite part. sadly, not a part of the syllabus. Lol.

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