The Queensland Police Service will introduce a revamped gratuities policy on July 1 which will ban officers from accepting free or discounted fast food.
But Queensland Police Union president Ian Leavers says the new rules are unfair.
"Every person these days is offered some form of discount and police are no different," Mr Leavers said.
"Police are still part of society, they are not robots and being offered a discount is neither wrong nor is it corruption.
"If giving informal discounts to police is banned, the police union will create a union shopper-card that formalises discounts."
He said even lawyers and barristers received discounts.
"Discounts available for members of organisations, such as the Law Society and the Bar Association, are provided under exactly the same principle as those which we may be able to utilise and no-one is suggesting that these other organisations are corrupt because they also receive discounts and neither are police," Mr Leavers said.
Police Commissioner Bob Atkinson says free or discounted food would be banned under the new policy.
Currently, police are given half-price food and drinks at McDonalds, KFC, Hungry Jacks, Subway, Coffee Club, Gloria Jeans, and many local food shops.
"The police department and I have the view those discounts at fast food places have had their day," Mr Atkinson told ABC Radio on Tuesday.
The new policy also cracks down on so-called "blue-light taxis" where police cars are used to give officers free lifts home.
"We don't accept ... police officers at a hotel having a few drinks should get a free taxi ride home," Mr Atkinson said.
"There are circumstances where it is appropriate for officers to get a lift home.
"For example, a detective in a country town has worked 24 hours straight and doesn't have his or her car at the office it's quite reasonable and I think the public will accept that person gets a lift home."
He said police were entitled to free rail travel and that won't change as he believes it improves safety on trains.
The reforms follow a Crime and Misconduct Commission investigation into allegations Gold Coast police did favours for nightclub staff who gave them free drinks and entry.
