COMMAND STAFF BIOS
SHERIFF AND CHIEF DEPUTY
Sheriff Jeff Davis
Sheriff Jeff Davis is a dedicated public safety officer, having over 35 years of service with the Sarpy County Sheriff ’s Office. He is committed as a leader in his career as a law enforcement official.
Sheriff Davis began his career with Sarpy County at age 18 as a dispatcher for the Sarpy County Emergency 911 Operations Center. Davis then attained his law enforcement officer certification and became a deputy sheriff for Sarpy County. Sheriff Davis gathered experience while working in the various divisions of the sheriff's office, to include Road Patrol, Investigations, Jail and Administration. Throughout his tenure, Sheriff Davis advanced through the ranks of the office, eventually promoted to chief deputy. Davis was sworn in as Sarpy County Sheriff in 2005. Sheriff Davis graduated from the 155th Session of the FBI Academy at Quantico, Virginia.
Sheriff Davis has been an active member of the Fraternal Order of Police Lodge 3, Knights of Columbus, National FBI Academy Graduate's Association, and Chairman of the Nebraska Law Enforcement Easter Seals Telethon. Sheriff Davis has helped with Easter Seals camps, assisting children with physical and mental challenges. His achievements include Past President and Vice-President of the Sarpy County Fraternal Order of Police Lodge 3, recipient of the “Michael J. Elman Officer of the Year” Award. He received the Bellevue Kiwanis Chapter “Officer of the Year” award. While serving a term on the Bellevue City Council in 1996, Davis was presented the “Jewel of Bellevue” award by Past Bellevue Mayor Boyd. Davis has promoted helping others by participating in blood donations with the American Red Cross and is a “Ten Gallon Blood Donor”. Sheriff Davis is devoted to making contributions in public service and community involvement projects.
Mike Jones joined the Sarpy County Sheriff's Office in 2005, and was appointed to the position of chief deputy. Prior to his employment with the Sarpy County Sheriff's Office, Jones had been the Nebraska State Patrol Commander for Troop A in Omaha Nebraska since 1995.
Chief Jones began his patrol career in 1977 as a road officer assigned in Blair. Since that time, he has worked assignments in the drug division, SWAT team and traffic services. Jones served in a supervisory capacity at all levels of traffic and investigative services. Jones is a graduate of the 107th Session of the Northwestern Staff and Command School, and holds a Bachelor of Science degree in Criminal Justice and a Masters of Arts Degree in Leadership from Bellevue University. He is an adjunct instructor for Metro Community College and Bellevue University.
John Kucer has been a member of the Sheriff’s Office since 1975. Captain Kucer graduated from the University of Nebraska-Omaha with a Bachelor of Science degree in Criminal Justice; he graduated from the University of Nebraska Medical Center with a degree in Nursing Science. He has also completed paramedic training from Creighton University Medical Center. Captain Kucer is a 1991 graduate of the National FBI Academy.
Currently he is Division Commander for the Administration Division. Captain Kucer is also the Commander of the Emergency Service Unit (ESU). Prior to his current assignment, he has been assigned to the Jail, Road Patrol, and Investigations Divisions.
Rolly Yost has been working for the Sarpy County Sheriff’s Office since 1980. Starting as a Jail Division deputy, he was promoted to Corporal in 1981. Yost was assigned to the Patrol Division, and was then appointed as Director of the Emergency Management Operations Center in 1983 by the Sarpy County Board of Commissioners. Yost managed the transition from a manual records system to the first computerized records management system. In 1989, Yost was promoted to Lieutenant and served 9 years in the Administrative Division. He was promoted to Captain in 2000, and worked as commander in the Administrative, Investigations Divisions, and Road Patrol. Captain Yost is currently assigned as the Court Services and Warrants Commander.
Capt. Yost holds a Bachelors of Science degree in Criminal Justice and a Master of Business Administration degree from the University of Nebraska at Omaha. He is a graduate of the Federal Bureau of Investigation National Academy.
Yost has served on committees involving state-wide communications systems. He has worked to improve retirement benefits for law enforcement officers across the state. Capt. Yost is married with 3 grown children. He resides in Bellevue.
Greg London began his career with the Sarpy County Sheriff’s Office in 1988. During his tenure, he has worked in the following divisions: Road Patrol, Investigations, Jail, and Administration. He is presently in charge of the Road Patrol Division, which is comprised of forty-nine deputies and one non-sworn employee.
Capt. London holds a Bachelor of Science in Criminal Justice and a Master of Public Administration. Both degrees were earned at the University of Nebraska at Omaha. He is also a graduate of the FBI National Academy in Quantico, Virginia. He is the only law enforcement officer in Nebraska who is certified as a jail manager by the American Jail Association.
Capt. Monty Daganaar became a law enforcement officer for the Sarpy County Sheriff’s Office in 1985. He has experience working in various divisions, to include the Road Patrol, Narcotics, Investigations, Support Services and Jail. He was promoted to the rank of Corporal in 1991, the rank of Sergeant in 1997, the rank of Lieutenant in 2002 and the rank of Captain in 2006. He is presently assigned to the Investigations Division as the Commander, overseeing both Criminal Investigations and the Narcotics unit.
Capt. Daganaar is also the current Commander of the Sheriff’s Office Bike Patrol Unit, which consists of seventeen members. He has also been an active member of the Sheriff’s Office Crisis Negotiators Unit since 1995. He is a current and active member of the Sarpy County Adult Drug Court Team, Sarpy County Law Enforcement and Education Fund Board, and is on the Project Extra Mile Board of directors.
Capt. Daganaar is also one of two current and active licensed polygraph examiners for the Sheriff’s Office. He attended and graduated from the Virginia School of Polygraph in Virginia Beach, Virginia in 1993. He has been an active member in the Nebraska Association of Polygraph Examiners, serving as Vice President for eight years. He is currently the Secretary-Treasurer, serving in that capacity for the past three years. He is an active member of the American Association of Police Polygraphists and the American Polygraph Association.
Capt. Daganaar attended and graduated with a Bachelor’s degree in Criminal Justice from the University of Nebraska at Omaha in 1982. He also attended and graduated from the 222nd Session of the FBI National Academy in Quantico, Virginia in 2005.
Dan Williamson has worked for the Sarpy County Sheriff's Office since 1972. He was promoted to the rank of captain in 1976. Capt. Williamson has experience working in the Road, Administrative, Warrants and Court Services Divisions.
His current assignment is Commander of the Jail Division, Captain Williamson graduated from the F.B.I. National Academy in Quantico, Virginia. He also instructed classes at the Nebraska Law Enforcement Training Center in Instructor Development. Capt. Williamson has been a consultant to the National Institute of Correction on Jails.