The officer in the Portland crowd-control team faces an assault charge after last year's race riots.
www.bbc.com
"Last October, the then police association president, Daryl Turner, wrote a letter to the city's mayor and police chief asking them to 'stand up and publicly support police bureau members who voluntarily serve on the Rapid Response Team'.
'Our RRT members do not volunteer to have Molotov cocktails, fireworks, explosives, rocks, bottles, urine, faeces and other dangerous objects thrown at them,'"