Change of venue was a legal motion which called for a trial to be relocated to a location which was less biased against the defendant.
In 2370, acting as Miles O'Brien's nestor, Odo petitioned the Cardassian courts to allow for a change of venue from Cardassia Prime to Deep Space 9, the sight of O'Brien's alleged crime of conspiring with the Maquis. The motion was denied. (DS9: "Tribunal")