A dramatic arrest has taken place at Crown Casino after police with long-arm firearms investigated a report that a gun had been pointed from a car at another driver in Burswood.

Bodycam footage shows a man being chased down by police on the gaming floor, forced to the ground, and cuffed.

No gun was found, but police did recover a novelty cigarette lighter shaped like a pistol, which was discovered in the casino food court toilets.

A 31-year-old man from Thornlie has been charged with being armed in a way that could cause fear and carrying a weapon in or near a place of public entertainment.

Police said they had received a report at 10am alleging a firearm was pointed from a white sedan on Teddington Road towards another driver.

A vehicle matching the description was later seen entering the Crown Casino car park on Bolton Avenue.

The 31-year-old was one of two men taken into custody. A man in his 40s was also arrested but released without charge.

Perth detectives are continuing to investigate the incident.

The Thornlie man was also charged with possessing drug paraphernalia and will appear at Perth Magistrates Court on Friday, May 22.