An Edmonton police officer who stepped on  the head of teen during an arrest will be docked 15 hours of pay for using inappropriate force.

Const. Glenn Thursby, a 15-year veteran, was helping Strathcona County RCMP with an arrest of two teens after a vehicle chase in the summer of 2008.

Thursby said he was using his foot to keep one of the teens under control, but the presiding officer found Thursby had twice stepped on the boy's head as he lay on the ground handcuffed.

The teen, who was not resisting in any way, was not hurt.

The presiding officer, Supt. Mark Logar, said the penalty might have been more than 15 hours, but he noted Thursby's otherwise "solid" service record.

The disciplinary hearing officer was told Thursby's actions embarrassed the Edmonton Police Service in the eyes of the public and other police forces.

Thursby will lose about $600 in pay.

With files from CBC's Janice Johnston