Leadership

  1. SheriffChapman2017

    Michael L. Chapman

    Mike Chapman was elected Sheriff, Loudoun County, VA in 2011 and took office January 2012. He was reelected in 2015, and began his second term in January, 2016. He directs operations for the largest full-service office in the State of Virginia which handles county-wide law enforcement, the jail and our courts. The Sheriff’s Office employs approximately 800; 600 sworn deputies and 200 civilian personnel. The Loudoun County Sheriff’s Office serves a population of 350,000 and an area of 519 square miles. During his first term in office, Sheriff Chapman expanded the Drug Abuse Resistance Education (DARE) to include both Elementary and Middle Schools, established a Cold Case squad; enhanced media outreach through integrated technology and a restructured website; introduced on-line reporting; professionalized the Human Resources and hiring processes; and improved training, accountability and efficiency.  (Full BioOpens a New Window.)

  1. LtColPoland

    Colonel Mark Poland

    Colonel Mark J. Poland has served with the Loudoun County Sheriff’s office for over 23 years within the Operations Bureau. He started his career with the Winchester City Police Department as a patrol officer before transferring to the Loudoun County Sheriff’s Office. He is a dedicated and professional commander currently assigned as the Undersheriff. Previous assignments included Patrol Deputy, Major Crimes Detective, Sergeant within Patrol and the Narcotics Unit respectively, 2nd Lieutenant in Patrol and Internal Affairs, Assistant Division Commander of the Criminal Investigations Division and Division Commander of Field Operations and Lieutenant Colonel. He received his Master’s degree from the Naval Postgraduate School, Center for Homeland Security and Defense and graduated with honors, Summa Cum Laude, from The George Washington University with a Bachelor’s degree in Police Science. He is a graduate of the Federal Bureau of Investigation’s National Academy, Session 260. He is a lifelong resident of Loudoun County where he lives with his wife and two children.



  1. Miller

    Lt. Colonel Bobby Miller

    Lt. Colonel Bobby Miller serves as Operations Bureau Commander for the LCSO. He began his career with the Sheriff’s Office in 1996, as a Field Deputy and Field Training Officer before becoming a Major Crimes Detective. Within both Field Operations and the Criminal Investigations Divisions, he has held the supervisory ranks of Sergeant, 2nd Lieutenant, Assistant Station Commander, Station Commander, Assistant Division Commander and Commander of the Criminal Investigations Division. He graduated from the FBI National Academy in 2018.


  1. Major Ahlemann

    Major Greg Ahlemann

    Major Greg Ahlemann serves as the Commander of the Field Operations Division. He began his career with the Sheriff’s Office in 1996 as a Field Deputy. He later joined the Traffic Section of the Operational Support Division and more recently served as the Station Commander for both the Western Loudoun and Eastern Loudoun Stations. He is a graduate of the Professional Executive Leadership School (PELS) session #40, and received the FBI-LEEDA’s Leadership Trilogy Award after the completing the Supervisor Leadership Institute, Command Leadership Institute, and Executive Leadership Institute programs. He also graduated from the FBI National Academy in 2020.


  1. Major McDonald

    Major Easton McDonald

    Major Easton McDonald joined the Loudoun County Sheriff's Office in 2001 and has served in Field Operations, Administrative and Technical Services, and the Criminal Investigations Division. He has served as a School Resource Officer, Community Police Officer, Academy Instructor, Patrol Sergeant, Youth Services 2nd Lieutenant, Office of Emergency Management 1st Lieutenant and Captain. He was promoted to Major in March 2021, and he oversees the Operational Support Division. Major McDonald holds a Master's Degree from the University of New Haven and a Bachelor of Arts in Social Science from Ramapo College of New Jersey. He is a member of the National Organization of Black Law Enforcement Executives (NOBLE), the Police Executive Research Forum (PERF), and the International Association of Chiefs of Police (IACP). He is a graduate of the  Southern Police Institute (SPI) Administrative Officers Course, the University of Louisville Police Executive Leadership Graduate Program, and holds a Virginia Sheriffs Institute Certification. 



  1. Nguyen

    Major Duy Nguyen

    Major Duy Nguyen serves as the Division Commander for the Court Services Division. He began his career with the Loudoun County Sheriff’s Office in 2003 as a Corrections Deputy, Training Officer, and adjunct academy instructor. He has previously served as Sergeant at the Adult Detention Center and Civil Enforcement Unit, 2nd Lieutenant in Corrections and Court Services Division, 1st Lieutenant Corrections and Court Services Division, Civil Unrest Unit Commander, and Captain of the Corrections Division. During Major Nguyen’s employment, he has received two VALOR Awards presented by the Loudoun County Chamber of Commerce. He is a graduate of the Professional Executive Leadership School (PELS) session #43.


  1. Major Richardson

    Major Charles Richardson

    Major Richardson currently serves as the Division Commander for the Corrections Division and has more than 34 years of experience in the field of Corrections.  He began his career in law enforcement in 1984 after being honorably discharged from the U.S. Marine Corps after serving his country for seven years. In 2013, he was the recipient of a national award presented by the America Jail Association for Supervisor of the Year. During Major Richardson's employment he has received two Valor Awards presented by the Loudoun County Chamber of Commerce. He is a graduate of the 61st Command Institute for Law Enforcement Executives and the Professional Executive Leadership School (PELS) session #36. 



  1. Sawyer Major Photo

    Major Christopher Sawyer

    Major Christopher Sawyer serves as the Commander of the Criminal Investigations Division. He began his career with the Sheriff’s Office in 2005 as a Field Deputy, Field Training Officer, and academy instructor.  He has previously served as Sergeant and 2nd Lieutenant in Patrol, 2nd Lieutenant in the Training & Accreditation Section, 1st Lieutenant in the Field Operations Division, and Captain in the Criminal Investigations Division. He previously served as the Commander of the Administrative and Technical Services Division. He has attended the Professional Executive Leadership School (PELS) as well as the FBI-LEEDA Executive Leadership Institute and holds two master’s degrees from Liberty University. He also graduated from the FBI National Academy in 2022. 


  1. Major Schleiden

    Major Craig Schleiden

    Major Craig Schleiden serves as the Commander of the Administrative and Technical Services Division. He began his career with the Sheriff’s Office in 1998 as a 911 dispatcher and transferred to a field deputy position in 2000. He worked in several capacities in the Field Operations Division as a Field Training Officer, Community Policing Officer, Sergeant and 2nd Lieutenant. He later was named the agency’s project manager for the replacement of the Public Safety Technology Systems. He has served as the Assistant Division Commander for both the Administrative and Technical Services Division and the Operational Support Division. He also returned to the Emergency Communications Center to serve as the Commander. He is a graduate of the Professional Executive Leadership School (PELS) session #50 and has attended the FBI-LEEDA Command Leadership Institute.