premise: Dewhurst v. Coulthard, 3 U.S. 409 (1799) , was a United States Supreme Court case that initiated with a civil suit brought by Isaac Coulthard (owner of Coulthard's Brewery) against John Dewhurst which reached the Court by a convoluted process. The Court refused to hear the case: "T]his court will not take cognizance of any suit, or controversy not brought before them by regular process of law."
hypothesis: Dewhurts v. Coulthard was not brought before the Supreme court by a regular process of law. 
reason: According to the context, Dewhurst v. Coulthard  was not heard by the supreme court due to it not being brought to them by regular process of law. 