what book do you have now? book 1- lesson 1 the investigation process lesson 2. private sector investigations lesson 3. the investigations industry and its history 4. the crime scene and investigating Book 2 lesson 5 interviewing and interrogation in investigating lesson 6 sources of information lesson 7 surveillance and unvercover investigations lesson 8 case mngmt. and report writing in investigating book3 lesson 9 law, evidence, and investigating, lesson 10 criminalistics and technology investigations lesson 11 retail security and loss prevention lesson 12 domestic and child custody investigations book 4 lesson 13 insurance investigations lesson 14 executive protection lesson 15 firearm usage and safety lesson 16 specialized investigations and that's it . 4 books total hope this helped out
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