The Green Party is set to hold a vote on legalising heroin in a bid to make a more “inclusive” society.

A motion to be presented ahead of the party’s upcoming conference aims to update its policy to call for an end to the “prohibition of drugs”.

The Green Party promised to establish a commission which would produce an “evidence-based” approach to changing the law around substance use.

The party’s leader, Zack Polanski, has taken it a step further, saying he would be in favour of the legalisation of all drugs.

Heroin and cocaine are among the drugs included in the motion.

The motion says: “To end the prohibition of drugs and create a system of legal regulation to minimise the harms associated with drug use, production and supply as part of an inclusive, supportive, socially just society”.

Earlier this month, the Green leader admitted he had never done drugs while appearing on BBC’s Sunday with Laura Kuennsberg.

The London Assembly member said: “I very clearly believe people should be able to do what they want to do. It just wasn’t for me.”

Mr Polanski had said he had grown up around others who drink and do drugs, but never felt the need to consume them, adding that he had “always liked dancing” without them.

He added drug enforcement was “very racialised”, suggesting that their criminalisation was racist.

He said: “This is very racialised, in fact often it is young black people who are stopped and searched on the street, particularly in London.

“Eight times more likely than their white peers, despite the fact there is no evidence they are any more likely to be holding or taking drugs.”

LATEST DEVELOPMENTS

• Councillor has grandchildren write Valentine’s Day cards to Crowborough asylum seekers
• ‘Big step forward!’ Gender critic hails trans guidance as she pinpoints safeguarding detail
• Green Party ‘reported to counter-terror police by internal whistleblower over extremism fears’

Sir Keir Starmer previously accused the Green Party of being “high on drugs, soft on Putin”, taking a swipe at Mr Polanski’s views on Nato.

In 2021, Sir Keir backed a proposal in Scotland to allow drugs users caught with class A substances to be given a warning rather than prosecuted.

A month later however, the Labour leader backtracked on the idea, saying he would not support the move.

The Green leader has positioned the party further to the left than Labour on issues such as the Israel-Gaza conflict, the notion of a wealth tax, and more relaxed approach to immigration.

Mr Polanski, who serves as a London Assembly member, was elected leader in September 2025, succeeding the co-leaders Carla Denyer and Adrian Ramsay.

The Green Party is currently polling at an average of 14 per cent, more than double their share of vote at the most recent general election.

Mr Polanski, meanwhile, has turned his attention to the upcoming Gorton and Denton by-election, hosting a rally in the constituency last week.

Hannah Spencer, the party’s candidate, has been accused of talking down the constituency, having written on Mumsnet in 2021 that she was “glad” to move out of an area she said was “blighted by a mile long row of (supposedly) money laundering takeaways”.

This comes as the Green Party has been reported to counter-terror police by a whistleblower over fears of antisemitism and extremism.

GB News has approached the Green Party for comment.