Fatboy Slim and dozens of MPs and nightlife chiefs have written to Suella Braverman accusing the Home Office of a "shortsighted and dangerous" decision to block drug testing at music festivals.
The chart-topping DJ and producer warns that testing at events "undoubtedly saves lives" and "significantly reduces the risk of overdoses".
They accuse the Home Office of obstructing on-site testing by insisting licences are in place - but officials deny this, saying it has always been the case and it's down to organisers to work with local police on safe testing.