Mark T. Demmer

Current agency: Washington County Sheriff's OfficeHillsboro, OR

Combined career data aggregated across all known agencies.

1Agencies

--Current Salary

0 / 0Civil Casesactive / total

--Liability Costs

--Arrests

0Reports

Licenses & certification

Licenses issued to this individual by a licensing authority.

Police Officer Supervisory

Status: Granted
First awarded: May 2, 2025
Issued by: DPSST

Police Officer Advanced

Status: Granted
First awarded: Oct 9, 2014
Issued by: DPSST

Police Officer Intermediate

Status: Granted
First awarded: Dec 28, 2010
Issued by: DPSST

Police Officer Basic

Status: Granted
First awarded: Nov 17, 2009
Issued by: DPSST

License history

Certification actions across all licenses, most recent first.

May 2, 2025
Granted
Police Officer Supervisory · Granted
Oct 9, 2014
Granted
Police Officer Advanced · Granted
Dec 28, 2010
Granted
Police Officer Intermediate · Granted
Nov 17, 2009
Granted
Police Officer Basic · Granted

Civil Cases

Cases connected through agency assignments.

Agencies

Known agency assignments linked to this profile.

Agency	Role	License	Start Date	End Date	Status
Washington County Sheriff's Office	Sergeant		Jul 7, 2008	Present	Active