Supporters of assisted dying will seek to force through the bill using an archaic parliamentary procedure if it continues to be blocked by the Lords. The high stakes move – described by some backers as the “nuclear option” – would be the first time the 1911 Parliament Act has been invoked for a private member’s bill. If the bill does not conclude by the end of the parliamentary session in May, it will automatically fail despite having been passed by the Commons. After the session of parliament ends, a bill must be reintroduced and passed again in the new session to trigger the act’s override mechanism. Of the 59 clauses in the bill, peers have not yet concluded debate on clause 1.