Lord Strathclyde said the last time a Conservative backbencher had put forward an amendment against the advice of the clerks, both he as shadow leader and the then Labour leader of the House had agreed on it being withdrawn.
One MP who will be poised to pounce is the Conservative Nadine Dorries - she plans to put down an amendment to guarantee that a woman considering abortion has access to non-compulsory counselling and advice from someone who has no financial interest in the outcome of her decision.