Employers will be able to take legal action against unions and sack workers under government plans to block strikes.
Rishi Sunak is expected to unveil the plans in a bid to ensure “minimum service levels” in six sectors.
The legislation will apply to the health service, rail, education, fire and border security.
A source told The Times: “This legislation will remove the legal immunity for strikes where unions fail to implement a minimum level of service. The strikes will be illegal. Ultimately people could be fired for breach of contract.”
The Prime Minister is expected to unveil the laws from Thursday.
Trade unions have vowed to take legal action over the Government’s plans.
Tim Sharp, a senior employment rights officer at the TUC, said: “The Conservative government’s plans would be a significant curb on working people’s fundamental right to strike to defend their pay terms and conditions.
“The measures are unworkable, counterproductive and almost certainly in breach of the Human Rights Act 1998. They can expect unions to fight this in parliament and in the courts.”