Week of January 26, 2026: Peter Markusen, Michael Dolan, William Strople

Welcome to my weekly sum-up. Every Monday I send out a short summary of the last week’s officers that have landed on Colorado’s Peace Officer Standards and Training public database of law enforcement misconduct and actions. They are not necessarily all actions that have happened in the last week, but those that have been added, and consist of any other context I could find.

A few resignations this week, a voluntary relinquishment, and a Boulder County Sheriff’s deputy arrested for domestic-violence related charges.

William Strople

• Resigned in lieu of termination for cause as a corrections deputy from San Miguel County Sheriff's Office on Dec. 10, 2025.
• Joined SMCS in summer of 2025
• No known previous agencies
• No previous actions

Sources:

• POST Database
• San Miguel County

Trevor Casey

• Resigned in lieu of termination for cause as an officer with Parker Police Department
• Sworn into Parker Police Department July 2017
• No known previous agencies
• No previous actions

Sources:

• POST Database
• Parker Police Department Facebook Page

Michael Dolan

• Voluntarily relinquished his certification while an officer with Broomfield Police Department
• Started at Broomfield Police Department in 2016

Sources:

• POST Database
• Michael Dolan LinkedIn Profile
• Broomfield Police Department Facebook Page

Peter Markusen

• Criminally charged as a deputy with Boulder County Sheriff’s Office on Jan. 27, 2026 for domestic violence related charges from the 26th
• Charges include: one count of harassment by striking, shoving or kicking; one count of assault in the third degree through knowingly or recklessly causing injury; and one count of child abuse through knowingly or recklessly causing injury
• According to the Daily Camera, Markusen’s arrest affidavit states he pushed his wife into the house’s garage, pushed her again while in the garage and then punched her while the two were talking, and she said that he had a history of hitting her and choking her
• In 2022, Markusen was nominated for the 29th Annual Beth Haynes Award — a “county-wide award nominated by law enforcement officers and victim advocates and voted on by their peers,” according to the Zonta Foundation District 12 which encompasses The Foothills Club of Boulder County who funds the award.
• According to BCSO, Markusen is on administrative leave

Sources:

• POST Database
• Cocourts
• Daily Camera
• Boulder County Sheriff’s Office
• Zonta Foundation