The view is that since regulations were made stricter in 2004, night-life in the city is much safer.

Door supervisors now have to enroll on courses before they can become licensed, to get them up to speed on the law, health and safety and drugs awareness.

A spokesperson for the SIA, said the stereotypes of bouncers are no longer.

‘It’s not about the big, burly guy on the door nowadays.’

She adds: ‘It’s moved away from the Hale and Pace, Max and Paddy type to more professional door supervisors who work in tandem with the police and others.’

Paul Cowles, landlord of a pub in Lincoln, said door staff now were much more ‘placid’ because of their training.

He said: ‘They take a bit more lip than they used to, because everybody still thinks they are bouncers and don’t realise they have had to do all these courses.’

The changes since 2004 have led to a rise in the number of people working on the doors nationally, going from around 46,000 in 2004 to more than 121,000 now.

For information on beSmart’s door staff courses please click here.