Investigations Division

Frank Gropp

Lieutenant Frank Gropp

Employed with the Henderson County Sheriff Department since 1986
Served with the Daviess County Sheriff's Office 1982 to 1985
Navy Veteran
25 plus years in Law Enforcement – served as a Patrolman, Juvenile Officer, Sergeant, Detective, Field Training Officer, Director of Training, Property and evidence officer, ID officer.


Attended Kentucky Wesleyan College from 1979 to 1981
Graduated Dept. of Criminal Justice Training, Police Academy Richmond Ky.


Certified in fingerprint classification and comparison 1992

John Book

Sgt. John Book

Employed with the Henderson County Sheriff Department since 1995
US Army veteran (1/75 Ranger Bn. 1990-1994)


80 college credit hours
Graduate - Southeast Regional Law Enforcement Training Center, Savannah, GA.
Graduate - The Department of Criminal Justice Training Academy, Richmond, KY.
Graduate of the FBI National Academy, Session #234


Board member - PYSA Henderson
National White Collar Crime Center
International Association of Financial Crime Investigators
Secret Service Task Force of the Western District of Kentucky

Bill Mills

Detective Bill Mills

Employed with the Henderson County Sheriff’s Office since 1997.
Currently assigned to Drug & Narcotics Investigation
ATF Task Force member
Served on the Henderson Drug Court Since 2004


Graduated from Kentucky Basic Law Enforcement Academy at E.K.U
Certified Emergency Medical Technician – B EMS 1990
Graduated DEA Clandestine Lab Cleanup Quantico, Va. 2001
AES Hazardous Waste & Emergency Response Cleanup. 2000
Washington State: Drug Court Procedures & Operations. 2004

Bill has also attended training on a wide variety of narcotic related topics including:
DEA Basic Narcotics Investigations
DEA Undercover Narcotics
DEA Covert Operations
Advanced Narcotic Investigations
DEA Clandestine Labs
NARK Drug Identification
Human Trafficking Investigations
Midwest Outlaw Gang Investigations


Kentucky State Police – Meritorious Achievement Award. 2003
Kentucky State Police – Colonel Aide De Camp Award. 2003
National DEA Enrique S. Camarena Award 2010.
National ABC Bow Hunters Hall of Fame 1990
Letter of Appreciation from the United States Attorney’s Office, 2005


Fraternal Order of Police
Kentucky, Narcotics Association.
National Deputy Sheriff’s Association
Kentucky Bow Hunters Association
American, Bow Hunters Committee
North American Fishing Club
Kentucky Colonel

Detective Bob Wathen

Employed with the Henderson County Sheriff Department since 2006
Employed with the Daviess County Detention Center for 12 years prior.
Served with the USAR for 8 Years.


Attended Owensboro Community College
Kentucky Department of Criminal Justice Academy Graduate 1990


Tazer x26
Homeland Security