1. Informants and sources defined -- 2. Motivations to cooperate as an informant -- 3. Recruiting informants -- 4. Sources of compensation for informants -- 5. Cooperation and contingency fee agreements -- 6. Informant documentation and identification -- 7. Undercover purchases of evidence by informants and probable cause -- 8. Corroboration of informant information -- 9. Informants and electronic surveillance -- 10. Controlling the informant -- 11. The witness security program.