Const. Andy Yung is charged with assault in connection with the attack on Sept. 10, 2011 after police were called to deal with a teen who was reportedly drunk.
The Abbotsford Police Department conducted an independent investigation after the girl suffered facial injuries.
A charge of assaulting a police officer was recommended against her but later withdrawn.
The BC Civil Liberties Association claims the teen was running from a gang when she was arrested and punched in the face by a Mountie.
The association says it has raised concerns about similar incidents involving use of force by Mounties against First Nations people in the northwestern part of B.C.
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