Originally Posted by sana rasool

civil engineer, i can send you one pdf format criminology book which should help you cover theories pretty nicely.

For the rest of the things, internet comes in handy. The fourth section especially (cyber crime, gender crime, human rights etc.) is all current affairs and general knowledge.

It should not be very difficult to prepare, if you are interested.

By the way, watching crime thrillers can help you ace the criminal investigation method really well. Your call.