Tories reveal plans to break ties with human rights court

David Cameron is planning to cut ties with the European Court of Human Rights unless it allows British parliament to have the final say over its rulings.

The prime minister is due to announce plans to scrap the 1998 Human Rights Act and break the formal link between UK courts and the human rights court in Strasbourg if his party wins the next general election.

A new British Bill of Rights would prevent human rights laws being used by terrorists and criminals to stay in the UK, by travellers to occupy land illegally and by prisoners to demand the vote, say the Conservatives.

The European Convention on Human Rights was drafted by British lawyers after World War II, but Justice Secretary Chris Grayling describes the way in which the text has been interpreted in Strasbourg over the years as "mission creep".

He tells the Daily Telegraph: "We will put in place a provision that will say that the rulings of Strasbourg will not have legal effect in the UK without the consent of parliament. Effectively what we are doing is turning Strasbourg into an advisory body."

The Conservatives say they will publish a draft British Bill of Rights and Responsibilities before Christmas, with a strategy paper expected to be published today.

However, Isabella Sankey, director of policy at Liberty, describes the plans as "legally illiterate" and "clearly intended to diminish the rights of everyone in Britain".

She challenges Grayling's "mission creep" statement, noting that if the convention was applied according to the technology and social attitudes of the 1950s – when marital rape and corporal punishment were legal  and homosexuality was prohibited – rights protection would "stagnate".

Tory MP and former attorney general Dominic Grieve has also dismissed his party's idea, describing it as "schoolboy stuff". He told the Financial Times: "This does not work and it is damaging to us to come up with half-baked solutions that don't bear close scrutiny."