Watch The Action: Washington County K9 Trials Take Over Hillsboro Stadium May 16 (Photo)
- 05/12/26
On Saturday, May 16, 2026, the Washington County Sheriff’s Office, in partnership with the Sheriff’s Office Foundation, will host the 19th Annual Washington County K9 Trials at Hillsboro Stadium, located at 4450 NE Century Blvd, Hillsboro, OR. This exciting event offers the public a great opportunity to learn more about the remarkable law enforcement K9 units dedicated to protecting our communities.
The competition will feature the following events: area search, an agility course, suspect apprehension, fastest dog, and handler protection. Gold, silver, and bronze medals will be awarded to the top three dogs in each category based on their fastest times. The overall winner will be determined by a point system across all events.
In addition to the thrilling competitions, spectators can look forward to our community and vendor fairs, as well as a meet-and-greet with the K9s after the competition. The community and vendor fairs open at 10 a.m., and the K9 competition will begin at 11 a.m.
Food and drinks will be available for purchase.
Family and friends of all ages are encouraged to join us in celebrating our dedicated K9 units, but please leave pets at home (service animals are welcome).
For more information, please visit https://bit.ly/K9Trials.
Note to the editors:
The media is invited to the K9 competition, and field access is available for recording video of the event. Please contact the Public Information Officer for access.
Watch The Action: Washington County K9 Trials Take Over Hillsboro Stadium May 16 (Photo)
- 05/12/26
On Saturday, May 16, 2026, the Washington County Sheriff’s Office, in partnership with the Sheriff’s Office Foundation, will host the 19th Annual Washington County K9 Trials at Hillsboro Stadium, located at 4450 NE Century Blvd, Hillsboro, OR. This exciting event offers the public a great opportunity to learn more about the remarkable law enforcement K9 units dedicated to protecting our communities.
The competition will feature the following events: area search, an agility course, suspect apprehension, fastest dog, and handler protection. Gold, silver, and bronze medals will be awarded to the top three dogs in each category based on their fastest times. The overall winner will be determined by a point system across all events.
In addition to the thrilling competitions, spectators can look forward to our community and vendor fairs, as well as a meet-and-greet with the K9s after the competition. The community and vendor fairs open at 10 a.m., and the K9 competition will begin at 11 a.m.
Food and drinks will be available for purchase.
Family and friends of all ages are encouraged to join us in celebrating our dedicated K9 units, but please leave pets at home (service animals are welcome).
For more information, please visit https://bit.ly/K9Trials.
Note to the editors:
The media is invited to the K9 competition, and field access is available for recording video of the event. Please contact the Public Information Officer for access.
Detectives Arrest Caregiver For Sexually Abusing Resident (Photo)
- 05/11/26
On Saturday, May 9, 2026, Washington County Sheriff’s Office deputies responded to investigate a sexual assault at a care facility in the Raleigh Hills area. Staff called the police after becoming concerned that a resident was sexually abused by an employee. Deputies responded initially, and a detective from the Violent Crimes Unit was called out to lead the investigation.
Investigators learned the staff member, 25-year-old Oscar Marquez-Alonso, had been employed as a caregiver and had worked at this specific care home for approximately a month. Detectives found evidence that Marquez-Alonso sexually abused an elderly female resident while he was working.
Marquez-Alonso was arrested and lodged at the Washington County Jail on the following charges:
- Sexual abuse in the first degree (two counts)
- Sodomy in the first degree
The investigation is ongoing, and Marquez-Alonso may face additional charges.
Detectives are concerned that there are additional victims. If you are a victim or have additional information, contact the Sheriff’s Office Investigations Division at 503-846-2500 and reference case number 50-26-6407.
The Washington County Sheriff’s Office, by Oregon House Bill 3273, is releasing Marquez-Alonzo’s booking photo to identify additional criminal activity.
Detectives Arrest Caregiver For Sexually Abusing Resident (Photo)
- 05/11/26
On Saturday, May 9, 2026, Washington County Sheriff’s Office deputies responded to investigate a sexual assault at a care facility in the Raleigh Hills area. Staff called the police after becoming concerned that a resident was sexually abused by an employee. Deputies responded initially, and a detective from the Violent Crimes Unit was called out to lead the investigation.
Investigators learned the staff member, 25-year-old Oscar Marquez-Alonso, had been employed as a caregiver and had worked at this specific care home for approximately a month. Detectives found evidence that Marquez-Alonso sexually abused an elderly female resident while he was working.
Marquez-Alonso was arrested and lodged at the Washington County Jail on the following charges:
- Sexual abuse in the first degree (two counts)
- Sodomy in the first degree
The investigation is ongoing, and Marquez-Alonso may face additional charges.
Detectives are concerned that there are additional victims. If you are a victim or have additional information, contact the Sheriff’s Office Investigations Division at 503-846-2500 and reference case number 50-26-6407.
The Washington County Sheriff’s Office, by Oregon House Bill 3273, is releasing Marquez-Alonzo’s booking photo to identify additional criminal activity.
Air 5 Locates Eluding Driver, Assists Deputies In Arrest (Photo)
- 05/05/26
On Saturday, May 2, 2026, at about 12:20 a.m., a Washington County Sheriff’s Office deputy attempted to pull over a driver for speeding on Sunset Highway near Murray Blvd, when the driver turned off the vehicle's lights and eluded.
Deputies monitoring the call saw the driver continue at a high rate of speed Westbound on Sunset Highway, taking the Highway 6 exit towards the coast. The flight crew for Air 5 was at the Hillsboro Airport, monitoring the call, and took off to assist.
Air 5 found the vehicle, which turned around and headed back Eastbound on Highway 6 towards Sunset Highway, still at a high rate of speed with the lights off. Air 5 continued to monitor the vehicle and saw the driver lose control and crash near the on-ramp to Eastbound Sunset Highway at NW Mountaindale Road in Banks.
The driver ran from the vehicle and hid in the yard of a nearby home. Air 5 kept eyes on the driver while deputies and a K9 team were arriving to search. Deputy Nealeigh and K9 Blitz located the driver hiding underneath a truck parked in the driveway.
The driver, 25-year-old Abayomi Vidal-Avalos, of Cornelius, was taken into custody and transported to jail for attempting to elude, reckless driving, DUII, and probation violations.
If you have information about this incident and have not spoken to deputies, please contact the Sheriff's Office through non-emergency dispatch at 503-629-0111 and reference case number 50-26-6004.
Note to the editors: Video of the incident is available on our Facebook page.
Air 5 Locates Eluding Driver, Assists Deputies In Arrest (Photo)
- 05/05/26
On Saturday, May 2, 2026, at about 12:20 a.m., a Washington County Sheriff’s Office deputy attempted to pull over a driver for speeding on Sunset Highway near Murray Blvd, when the driver turned off the vehicle's lights and eluded.
Deputies monitoring the call saw the driver continue at a high rate of speed Westbound on Sunset Highway, taking the Highway 6 exit towards the coast. The flight crew for Air 5 was at the Hillsboro Airport, monitoring the call, and took off to assist.
Air 5 found the vehicle, which turned around and headed back Eastbound on Highway 6 towards Sunset Highway, still at a high rate of speed with the lights off. Air 5 continued to monitor the vehicle and saw the driver lose control and crash near the on-ramp to Eastbound Sunset Highway at NW Mountaindale Road in Banks.
The driver ran from the vehicle and hid in the yard of a nearby home. Air 5 kept eyes on the driver while deputies and a K9 team were arriving to search. Deputy Nealeigh and K9 Blitz located the driver hiding underneath a truck parked in the driveway.
The driver, 25-year-old Abayomi Vidal-Avalos, of Cornelius, was taken into custody and transported to jail for attempting to elude, reckless driving, DUII, and probation violations.
If you have information about this incident and have not spoken to deputies, please contact the Sheriff's Office through non-emergency dispatch at 503-629-0111 and reference case number 50-26-6004.
Note to the editors: Video of the incident is available on our Facebook page.
Deputies Conduct Mission To Combat Alcohol Sales To Minors (Photo)
- 04/14/26
On Saturday, April 11, 2026, Washington County Sheriff’s Office deputies and volunteer reserve deputies conducted a compliance mission to identify retailers selling alcohol to minors. Deputies monitored 18-20-year-old Sheriff’s Office Search and Rescue (SAR) cadets as they attempted to purchase alcohol from 42 local retailers.
During the mission, cadets would enter a location that sells alcoholic beverages and attempt to purchase alcohol using their real Oregon Driver License, and are instructed to be truthful if asked questions about their age.
In most cases, retailers did not sell alcohol to minors and were thanked for complying with Oregon’s liquor laws. Five retailers sold alcohol to the minor cadet. At each of the five locations, the sales clerk was issued a citation for furnishing alcohol to a minor.
The five locations that sold alcohol to minors were:
- Cedar Mill Liquor Store
- Green Light Food Mart
- Safeway on Cornell Road
- The Booze Barn
- Target on Beaverton Hillsdale Highway
The Sheriff’s Office periodically conducts alcohol compliance missions to stem the sales of alcohol to minors and is grateful for the retailers who refuse to sell.
Deputies Conduct Mission To Combat Alcohol Sales To Minors (Photo)
- 04/14/26
On Saturday, April 11, 2026, Washington County Sheriff’s Office deputies and volunteer reserve deputies conducted a compliance mission to identify retailers selling alcohol to minors. Deputies monitored 18-20-year-old Sheriff’s Office Search and Rescue (SAR) cadets as they attempted to purchase alcohol from 42 local retailers.
During the mission, cadets would enter a location that sells alcoholic beverages and attempt to purchase alcohol using their real Oregon Driver License, and are instructed to be truthful if asked questions about their age.
In most cases, retailers did not sell alcohol to minors and were thanked for complying with Oregon’s liquor laws. Five retailers sold alcohol to the minor cadet. At each of the five locations, the sales clerk was issued a citation for furnishing alcohol to a minor.
The five locations that sold alcohol to minors were:
- Cedar Mill Liquor Store
- Green Light Food Mart
- Safeway on Cornell Road
- The Booze Barn
- Target on Beaverton Hillsdale Highway
The Sheriff’s Office periodically conducts alcohol compliance missions to stem the sales of alcohol to minors and is grateful for the retailers who refuse to sell.
