Now mulling lawsuit, Gresham Police Chief forced to resign Decision comes in wake of third-party investigation, claims of hostile workplace Gresham Police Chief Robin Sells submitted her resignation from the city of Gresham Friday morning, Feb. 19. In a letter sent to city leadership, she emphasized the resignation was not voluntary, coming on the heels of a third-party investigation that highlighted a hostile workplace within the Gresham Police Department under her direction. "I am not resigning voluntarily, but as a direct result of the city's choice to release a deeply flawed report without affording me due process," Sells wrote. The investigation was conducted by Barran Liebman LLP at the direction of Gresham City Council, and sought to weigh dueling complaints filed by Chief Sells and Deputy City Manager Corey Falls against one another. That report was released to the public Tuesday, Feb. 9, and heavily leaned in favor of Falls, a Black man attempting to implement new programs within the city, and portraying a pattern of hostility, scorn, and attempts to undermine his authority.