A former police officer claims Crown Casino security guards ejected he and his group from the gaming floor for no reason in an intimidating and foul-mouthed confrontation last week.

The bouncers allegedly told the former officer to "F--- off mate, we don't want anonther bloke having a heart attack now, do we?", in an apparent reference to casino patron Anthony Dunning, who died last week following another confrontation with security guards.

One of Crown Casino's gaming rooms. Credit:Ray Kennedy

John* told radio 3AW today he was disgusted by the behaviour and intimidating tactics used by the bouncers, who approached his group of about 10 business associates who had attended a conference in Melbourne.

As a former police officer, John said he could recognise when a person was drunk and behaving in an inappropriate manner in a public place.