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On October 6, 2019 at 10:29pm, officers were dispatched to Dotty's restaurant at 16230 SW Pacific Highway on a report of an armed robbery. An employee alleged that an adult male reached into a backpack, pulled out a black handgun, demanded cash from the till, and exited the building.
As officers arrived, employees reported that the suspect had entered an outdoor portable restroom in the same business complex. The suspect was initially non-compliant and did not exit the restroom despite commands from officers to do so. Ultimately, the suspect exited the restroom, but began reaching into his backpack. Officers repeatedly commanded the suspect to put the backpack down. Believing the suspect to be armed with a weapon and having probable cause to believe the suspect had just committed a violent crime, an officer warned the suspect and then deployed less-lethal bean bag rounds before taking him into custody. When officers searched the suspect’s backpack, a replica gun was found. Emergency medical personnel checked the suspect at the scene and cleared him medically.
Officers arrested the suspect, Keith Garrett Mattson, 25 years old, for Robbery II and Theft II-Other, as well as two arrest warrants from previous, unrelated incidents. They lodged Mattson in the Washington County Jail.
The Tigard Police Department would like to thank our law enforcement partners for their assistance on this call.