Expert banned from UK government event for tweets that criticised Tories

Dan Kaszeta is one of at least eight speakers banned by opaque vetting scheme in attack on free speech'

A chemical weapons expert has been disinvited from giving a keynote speech at a UK-run expert conference after civil servants discovered social media posts he wrote criticising Conservative ministers and government migration policy.

Dan Kaszeta is one of at least eight speakers banned from government events by an opaque vetting scheme introduced by Jacob Rees-Mogg in 2022, a policy that the banned expert described as an attack on free speech.