TORONTO - Ontario's civilian police watchdog will not reopen an investigation into the arrest of a G20 protester after a report said officers used unnecessary force.

The Office of the Independent Police Review Director looked into the arrest of Adam Nobody in June 2010 during the summit of world leaders in Toronto.

It was determined five officers used unnecessary force during Nobody's arrest and the director referred the matter to Toronto police for a disciplinary hearing.

The Special Investigations Unit says its director Ian Scott has determined the report does not contain new information that would be admissible in a criminal court.

Therefore, the Nobody investigation will not be reopened.

Previous SIU investigations of the incident resulted in Const. Babak Andalib-Goortani being charged with assault with a weapon on Dec. 21, 2010.