An ABC police reporter with a has been detained by police who accused him of being "off his chops" on a dangerous drug.

"If we hadn't hung onto you mate you'd float off into f---ing outer space," one cop says in a video the Brisbane journalist uploaded to Twitter on Saturday, labelling the incident "unbelievable".

But experienced emergency services reporter Josh Bavas said he only had a when two officers detained him outside Bunnings at Oxley, in Brisbane's south-west.

The Queensland Police Service released a statement at 4.30pm, saying senior officers would investigate the officers' behaviour and confirming Mr Bavas didn't have any drugs on him.