Two promotions announced following new Tulsa Police Chief's appointment

Deputy Chief Mark Wollmershauser Jr. (left), Major Mark Ohnesorge (right)

The Tulsa Police Department announced two promotions Friday following the recent change at Chief of Police.

Mark Wollmershauser Jr. is promoting to Deputy Chief and Mark Ohnesorge is promoting to Major. The promotions follow a routine testing and selection process following Chief Dennis Larsen's appointment to lead the department and vacating of his previous Deputy Chief position.

Wollmershauser is a lifelong Tulsan and has served on the Tulsa Police Department for 19 years, most recently as the Training Director at the Academy holding the rank of Major.

Throughout his career, he has served in all three Bureaus of the department and all three uniform divisions.

He is a graduate of the FBI National Academy and the Police Executive Research Forum’s Senior Management Institute for Police.

Wollmershauser is assigned to be the Deputy Chief of Operations Bureau. The Operations Bureau encompasses all Patrol Divisions and the Special Operations Division which has, the Special Operations Team, Bomb Squad, Motorcycles, K-9, Incident Management Team, Air Support, Dive Team, Special Response Team, and the Mental Health Unit.

Ohnesorge has served the Tulsa Police Department for 16 years. Spending time in the field and Detective Division as a Crime Scene Investigator, he was promoted to the rank of Lieutenant while in Crime Scene.

Ohnesorge spent time in multiple divisions as a Lieutenant, including Patrol, Detective Division, Training Division, and the Special Investigations Division.

In 2020, he was promoted to the rank of Captain and was assigned to Mingo Valley Patrol Division before returning to the Training Division to supervise our recruiting efforts.

Ohnesorge also served as the commander of the department’s Incident Management Team where he worked on some of Tulsa’s largest disaster response operations- including the 2019 flood, 2020 COVID response, and the 2022 St. Francis Active Shooter response.

Major Ohnesorge has been assigned as the Training Director of the Training Academy filling the spot vacated by Deputy Chief Wollmershauser.