COMMAND STAFF BIOS
SHERIFF AND CHIEF DEPUTY
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.
Chief Deputy Greg London began his career with the Sarpy County Sheriff’s Office in 1988. During his tenure, he has been the commander of the Road Patrol, Jail, and Administration Divisions.
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 also graduated from the FBI National Academy in Quantico, Virginia. Furthermore, London is an alumnus of Leadership Sarpy, and he currently sits on Leadership Sarpy's Advisory Board.
In November 2015, Chief Deputy London was appointed to the Nebraska Justice Reinvestment Implementation Coordinating Committee, which was created under Legislative Bill (LB) 605. The intent of LB 605 is to develop data-driven policy option which are designed to reduce prison overcrowding, decrease spending on corrections, and increase public safety. The coordinating committee is responsible to ensure established policies are implemented successfully and on time.
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 Administration Division..
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.
Captain 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, and Support Services Divisions. Captain Yost is currently assigned as the Road Patrol 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.
Captain Culler began his law enforcement career in 1986 with the Sarpy County Sheriff’s Office. Captain Culler is currently assigned as Division Commander of the Support Services Unit, which includes Court Security operations, Civil Process Unit, Vehicle Inspection Unit, Sheriff’s Office Vehicle Impound Lot, and Administrative Desk Sergeant. His previous assignments have been working as Court Security Sergeant, and positions in the Jail Division as a Deputy and then Supervisor. His experience includes his assignment in the Narcotics Unit and Supervisor of the Criminal Investigations Unit. He has worked in the Administrative Division as a Command Officer, and most recently commanded the Road Patrol Division.
Captain Culler has been a member of the Sarpy County Sheriff’s Honor Guard for almost 20 years, and was Honor Guard Commander from 2001 through 2015. His has been assigned with the Emergency Service Unit (ESU or SWAT) for over 15 years, serving as Team Leader for over 4 years. He is currently assigned as Interim Commander of the ESU. Captain Culler graduated from the 256th Session of the FBI National Academy in Quantico, Virginia.
Captain Dan Shukis has been a member of the Sarpy County Sheriff's Office since March, 1989. Capt. Shukis has experience working in the Jail, House Arrest/Work Release, Road Patrol, Warrants, Training, Administration and Investigations.
Capt. Shukis was promoted to the ran of Corporal in 1997, the rank of Sergeant in 2000, the rank of Lieutenant in 2009, and the rank of Captain in 2016. He is currently assigned to the Jail Division. Capt. Shukis is a past member of the Field Force Unit, and is the current unit commander of the Sarpy County Sheriff's Office Crisis Negotiations Unit, which consists of ten members.
Capt. Shukis participates on several committees within the Sheriff's Office and for Sarpy County, including the Employee Sick Bank, County Employee Recognition, and the Department Head Advisory Group. He coordinates the Sarpy County Medicine Drop event, where the public can voluntarily turn in prescription medication for disposal.
Capt. Shukis graduated from Bellevue University with a Bachelor of Science Degree in Criminal Justice Administration and holds a Master of Science Degree in Security Management. He is an Adjunct Professor at Bellevue University.
Captain Kevin Griger was sworn in as a member of the Sheriff’s Office on January 2, 1987. Captain Griger graduated from the University of Nebraska-Omaha with a Bachelor of Science degree in Criminal Justice and was a member of the United States Marine Corps Reserve from 1983-1988. Captain Griger graduated with the 238th session of the National FBI Academy in 2009.
Captain Griger is the Division Commander for Investigations which comprises the Warrants Unit, Narcotics Unit, Criminal Investigations Unit and the Evidence and Property Unit. He has previously worked in the Jail Division as a deputy and supervisor, the Road Patrol as deputy, supervisor and Command Officer, the Administration Division working in Professional Standards and earlier assignments in investigations as a deputy in the Narcotics Unit and a sergeant in Criminal Investigations.
Captain Griger is the High Risk Incident Commander. He was formerly the Commander for the Emergency Service Unit and had been with the team for twenty years. He is also the Program Coordinator for Project Lifesaver. Captain Griger has been an active instructor in multiple areas of law enforcement to include tactics, field training, active shooter response and the standard response protocol.