| Interviewee background (Designations) | Sample demographics | |
| Number of interviews | Percentage | |
| Former investigators (I) (e.g., FBI, State Police) | 18 | 25% |
| Former prosecutors (A) (e.g., Department of Justice, State Attorneys) | 22 | 31% |
| Individuals who experienced corruption first hand (E) (e.g. Offenders, Victims, Insiders, Undercover and Whistleblowers) | 14 | 19% |
| Public watchdogs (S) (e.g. Stakeholders, Community Activists, Researchers) | 18 | 25% |
| Total | 72 | 100% |