THE Tories’ anti-strike Bill is a “total dog’s dinner,” the labour movement charged today after an independent government watchdog slammed the legislation as “not fit for purpose.”

The regulatory policy committee — independent experts assembled by the Department for Business and Trade — slapped a rare “red rating” on Downing Street’s impact assessment of the Strikes (Minimum Service Levels) Bill, saying it “lacks sufficient evidence and is based on assumptions.”

The TUC accused ministers of keeping the nation in the dark about the “draconian” legislation, which could empower bosses or even Business Secretary Kemi Badenoch to sack workers who refuse to cross picket lines and provide an as-yet undefined service level across key sectors during walkouts.