The government’s long-awaited gambling white paper is still a “work in progress”, according to one of the most prominent campaigners for reform in parliament.

There have been suggestions that prime minister Liz Truss’s new administration might scrap plans for gambling reform but former Conservative leader Sir Iain Duncan Smith told a meeting at the party’s conference in Birmingham on Tuesday that there had been little change from the situation under Boris Johnson’s regime.

The government launched its review of gambling in December 2020 promising to make regulation “fit for the digital age”.

A white paper was expected to cover issues such as affordability checks, stake limits, gambling advertising and a levy to pay for the prevention and treatment of gambling-related harm, but it has been repeatedly delayed.