About Us

The Office of Police Accountability helps ensure the actions of SPD employees are constitutional and in compliance with federal, state, and local laws by investigating and making recommended findings regarding allegations of misconduct. OPA is a hybrid oversight-agency comprised of both sworn and civilian personnel. The OPA Director and Deputy Director are civilians responsible for carrying out the purpose and mission of OPA including classification of complaints for investigation and making recommended findings to the Chief of Police for all sustained cases. Currently sworn SPD Sergeants conduct the investigations initiated by OPA. Under recent legislation passed by the Seattle City Council and signed into law by the Mayor, OPA will eventually have a combination of both sworn and civilian investigators. In addition, under the new legislation, OPA will have civilian Complaint Navigators, who will be working directly in the community to forward the mission of OPA.


Andrew Myerberg, OPA Director

Andrew Myerberg, a civilian lawyer, was sworn in by Mayor Tim Burgess November 21, 2017, to serve as the first OPA Director under the new police accountability legislation adopted in May of 2017. Andrew leads the work of OPA by overseeing the intake, classification, and investigation of complaints, certifying investigative findings, suggesting revisions and clarifications to Seattle Police Department policies, and making recommendations on discipline to the Chief of Police.

Andrew comes to OPA from the Seattle City Attorney's Office, where he was the lead attorney for the City of Seattle in the Consent Decree over the Seattle Police Department and provided legal advice to City departments on criminal justice and law enforcement issues. Andrew also previously served as legal counsel to the Community Police Commission.

• American University, Washington College of Law - Juris Doctorate
• Hamilton College - Bachelor of Arts

Tonia S. Winchester, Deputy Director

Tonia Winchester has been working within the criminal justice field for more than a decade to bring about reforms to build trust between law enforcement and the community. After years serving as a prosecutor for the cities of Seattle and Wenatchee, where she handled large volumes of misdemeanor cases, Tonia was the Outreach Director for the New Approach Washington campaign that successfully legalized marijuana in Washington State. Her high pressure role included forging alliances and winning endorsements from many groups traditionally seen as hostile to marijuana reform, such as the Washington State Labor Council, AFL-CIO, Children's Alliance, and El Centro de la Raza. Tonia was also called upon to speak across the state advocating for the sensible use of law enforcement resources to focus on violent crime.

Tonia's Persian heritage combined with her professional experiences are the foundation for her passion to ensure constitutional and bias-free policing. Working alongside community members, local leaders, SPD employees, and OPA staff, Tonia has diligently sought to ensure OPA brings accessible, trusted and transparent oversight to the Seattle Police Department. By working to establish classification standards and ensuring transparency into all processes within OPA, she hopes to achieve long-lasting and tangible positive transformation within the Seattle Police Department.

Tonia received her B.A. from the University of Washington and her law degree from Seattle University School of Law. Born and raised in Alaska, to a Persian mother, Tonia has made the Greenlake area her home with her Great Pyrenees dog Sephideh.

• Seattle University School of Law - Juris Doctorate
• University of Washington - Bachelor of Arts

Anne Bettesworth, Senior Policy Advisor

As a Senior Policy Advisor at the OPA, Anne is involved in program management, strategic planning, communications, and policy implementation. She transitioned here after spending four years providing strategic policy advice to help the Seattle Community Police Commission fulfill its responsibilities under the Consent Decree. Anne's previous professional experiences also include working for the Council of State Governments Justice Center, the American Psychological Association's Science Government Relations Office, and the Office of Congressman Jim McDermott. She has a Master's in Public Administration from The George Washington University and a Bachelor's in Political Science from the University of Washington.

Miriam VonAschen-Cook, Management Systems Analyst

Miriam has 20 years of experience as an information technology and data systems professional. She holds a Bachelor's degree from Oklahoma State University where she studied Political Science and American Studies. Miriam’s role at OPA utilizes data to report on police accountability trends and extrapolate useful and pertinent information for OPA and Seattle’s police accountability partners. Miriam is passionate about serving the community and she believes that creating an avenue of trust between the community and police is a vital duty of OPA.

Kajhyla Washington, Admin Specialist III

Kajhyla came to OPA from the City Attorney's Office, having worked with both the Civil and Criminal Division. Her duties at OPA include providing direct support to the OPA Director and Deputy Director in scheduling, processing requests, and general office management and support to the unit. Growing up in a community that lacked strong ties with the police, Kajhyla welcomed the opportunity to work within an organization looking to help bridge the gap between minority communities and law enforcement. In addition to her work within OPA, Kajhyla holds an Associates of Applied Science in Paralegal Studies and a Bachelors of Science in Interdisciplinary Social Science from Central Washington University. Kajhyla plans to attend law school and hopes to pursue a career in Public Policy and Legislation.

Hope Barnes, Admin Specialist II

As an Admin II, Hope’s primary duty is to process incoming OPA complaints and organize intake files for the OPA Sergeants. She has previously interned for the Spokane Office of Police Ombudsman, a fellow civilian oversight agency. Hope has a Bachelor of Arts Degree in Psychology from Whitworth University and plans to pursue a Juris Doctorate degree in the near future. She is very passionate about politics and social justice; her goal is to pursue a career as a Civil Rights attorney.

Kristina Adams, Admin Specialist I

As an Admin Specialist, Kristina focuses on transcriptions, clerical operations, and organizational support of the OPA team. She is fascinated by the work the OPA does and believes the department plays an important role in bridging the gap between civilian and sworn communities. She enjoys helping her community and is honored to serve the City of Seattle. Kristina has a Master’s in Design from Goldsmiths, University of London, loves art and problem solving, and has lectured internationally.

Puao Savusa, Admin Specialist I

Puao comes from a family of community organizers so her upbringing includes exposure to many community experiences which has led her to continue working in the community with other Pacific Islander youth and families. Through this she found a passion for criminal justice/law enforcement, focusing on policy and legislative components in this area. She seeks to build accountability to communities and helping to build relationships that are based on trust and respect of the diverse populations as part of her work experience. At OPA, Puao mainly focuses on administrative duties that includes supporting the overall work of OPA. Puao recently completed her MA in Criminal Justice from Seattle U and holds a BA in Psychology from WSU.


The OPA is a hybrid accountability office that includes sworn staff. OPA currently has a Captain and two Lieutenants, who supervise eight Sergeants. OPA has also created an Acting Sergeant position that rotates through OPA for a 6-month assignment to gain supervisor insight and experience. The sworn personnel come to OPA from a diverse set of backgrounds and with a broad depth of experience. They currently represent more than 215 years of combined law enforcement experience and have served with the Seattle Police Department for an average of 18 years. The Sergeants who investigate OPA complaints have knowledge of SPD training, tactics, use-of-force, and other areas. They have served within various departments including Patrol, Homicide, Force Review Board, Domestic Violence, Force Review Unit, Information Technology, Narcotics, and Education and Training.