A Full-Service Investigative Agency
Comprehensive Investigative Solutions, Inc. was established by former narcotics detectives with more than eighty years of combined experience in the law enforcement industry. John Sinks and the CIS team spent their entire careers serving and protecting the citizens of South Florida.
We pride ourselves on core principles of honesty, integrity, respect, and teamwork. These are the fundamental values our company was founded on. During their tenure in law enforcement, our founders served on road patrol, as field training officers, and as investigators handling many different facets of crime, including complex homicide investigations and covert narcotics operations.
Meet Our Investigators
Decades of combined federal, state, and tactical law enforcement expertise.
Retired Narcotics Detective with the Broward Sheriff's Office, John brings more than thirty-seven years of law enforcement and security experience. He has extensive knowledge of covert surveillance and undercover operations. Results-oriented and client-focused in every case.
Retired FBI Supervisory Special Agent with more than four decades of experience in Security, Intelligence, and Law Enforcement. A proven leader, team builder, and innovator who brings federal-level expertise to every investigation. His background spans domestic and international intelligence operations, making him an invaluable asset to every case CIS handles.
Owner of Direct-Action Training Inc., providing Hand-to-hand combat, edge, impact, and improvised tool training to military, law enforcement, and security professionals in high-risk environments. Active member of the Broward Sheriff's Office elite SWAT and SNIPER teams and lead instructor in their Training Division, responsible for developing and instructing defensive tactics for special response teams.
Ready to Get Answers? We're Available 24/7.
All consultations are free and strictly confidential. Call us directly or submit a secure inquiry online.