''I've used many drugs - most,'' he says.

''Tobacco, alcohol, cannabis, ecstasy, cocaine, hallucinogens, peyote … peyote was amazing.''

The drug law reform advocate is happy to admit his continuing drug use because he believes the silence around drugs is only causing harm in society.

''I believe drugs should be taken responsibly,'' he says. ''They're dangerous, but people can have good experiences and prohibition doesn't allow us to talk about it. People do many things that are dangerous. Driving is dangerous, eating fast foods is dangerous, but the best way to deal with that is to openly discuss it.''

Mr Hunt, 32, says in his work he often saw young people whose lives had been changed, even ruined, after they had been caught with small quantities of drugs, but he had never been caught.

''I think some people are more likely to be searched or pulled over by police, which is a real discrimination problem.

''You don't see bankers being pulled over and searched for cocaine,'' he says.