North Wales Police Chief Constable Richard Brunstrom says he is prepared to see drugs such as heroin openly on sale because current drug laws are doing "more harm than good".
Speaking on BBC Wales' Dragon's Eye political programme, Mr Brunstrom described drugs as a menace and said that current policy was creating crime around massive illegal profits and putting vulnerable people in danger.
"Heroin is a very, very addictive substance, extremely addictive, far more so than nicotine, but it's not very, very dangerous. It's perfectly possible to lead a normal life for a full life span and hold down a job while being addicted to heroin.
"I don't advocate anybody abusing their body with drugs but clearly some want to. What would be wrong with making heroin available on the state for people who wanted to abuse their bodies. What is wrong with that?"
Mr Brunstrom believes that legalising drugs would wipe out a multi-million pound criminal trade and says he has been amazed to receive "massive" public support for his views.