Captain Mueller has 17 years in law enforcement working in numerous capacities.

Captain Mueller started his career with the St. Louis County Police Department in 2007 as a patrolman. After graduating the St. Louis County Police Academy, he was assigned to the South County Precinct. In 2009 he was assigned to the Affton-Southwest precinct where he served until October 2014. During his time in patrol, he was a certified Field Training Instructor and Crisis Intervention Team Officer. He was then assigned to the Neighborhood Enforcement Team located in the North County Precinct. The unit’s focus was dedicated to drug enforcement and arresting those illegally possessing firearms. 

In 2014, he was assigned to the St. Louis County Police Departments Bureau of Crimes Against Persons- Burglary Unit in North St. Louis County as a Detective.

  
In 2015, he was hired with the Monroe County Sheriff’s Department and served in patrol. In 2016 he was assigned to the Criminal Investigation Division. In 2018, he was promoted to Sergeant and assigned as a night watch supervisor. In March of 2020, he was promoted to the rank of Captain (Chief Deputy).
Captain Mueller oversees the daily operations of the 911 Dispatch Center, Court Security, and Jail Operations. 

Captain Mueller is a lifelong Monroe County resident where he graduated from Columbia High School in 2001. Captain Mueller’s wife Dawn is the principal at Columbia Middle School.