PORTLAND, Ore. (AP) -- Authorities say the president of the Clackamas County police union has been arrested for investigation of assault.
Authorities say sergeant Steve Hyson was arrested Thursday on allegation of assaulting his 22-year-old stepson in Clark County in Washington state.
The Clackamas County sheriff's office says 46-year-old Hyson was put on administrative leave.
Hyson's term as president for the 400-member Clackamas County Peace Officers' Association ends in 2013.
The Oregonian reports that Hyson has weathered past domestic-violence allegations.
In 2008, he was charged with fourth-degree domestic violence assault, accused of striking his wife at their home north of Vancouver. The charge was dropped after an investigation. Last year, Clark County deputies investigated a domestic-violence complaint against Hyson, but he was not charged.