death warrant 
noun
An official order for the execution of a condemned person: he signed the king’s death warrant in 1649 figurative he signed his own death warrant by being seen as a peacemaker...
- In just over a year's time, his political death warrant will be signed by the American people.
- To close the account is equivalent to signing a death warrant for the customer's business.
- The executioner hugs her with one arm, like a dancing-master, to keep her upright, and adjusts the knot while an official reads the death warrant.