Shawn has served in municipal law enforcement for 28 years with Peoria Police Department and currently assigned to Professional Standards. He started out his career within the Patrol Operations function and periodic collateral duties of as a Field Training Officer. In 2005, he was promoted to Sergeant assigned to Patrol and later transferred to Field Training Division to oversee the Field Training program. In 2008, Shawn transferred to Criminal Investigations as a supervisor to monitor the Juvenile Division detectives and cases of Criminal Investigation Division while maintaining collateral duties of the Field Training Divisions. In 2013, he was promoted to Lieutenant and assigned to Patrol Operations with collateral duties of the Field Training program and its recruits.

In 2016, he transferred to Professional Standards with duties to include tracking and conducting internal investigations, policy review and development, periodic department audits and maintaining the integrity of the department through a fair and impartial investigation and review process. In 2019, he became the departments Records Administrator to oversee the Records Division which handles the fulfillment of all subpoena’s, Freedom of Information Act requests, City licensing / Records checks, and various other records related duties. In 2021, he returned to the Professional Standards Division with the duties as noted above. During his tenure in a multitude of divisions, he has attained various specialized skills to include video and computer related training, local records and Freedom of Information Act certifications, and other investigative skill sets which assist in his current assignment. In 2022, retired from the Peoria Police Department.​