A writ of certiorari, otherwise known simply as cert, is an order by a higher court directing a lower court to send record of a case for review, and is the next logical step in post-trial procedure. While states may have similar processes, a writ of cert is usually only issued, in the United States, by the Supreme Court, although some states retain this procedure. Unlike the aforementioned appeal, a writ of cert is not a matter of right. A writ of cert will have to be petitioned for, the higher court issuing such writs on limited bases according to constraints such as time. In another sense, a writ of cert is like an appeal in its constraints; it too may only seek relief on grounds raised in the original trial.