461.5.a. Clear the Contested Status.
461.5.b. If there are no Units remaining here controlled by any player, the Battlefield becomes Uncontrolled.
461.5.c. Remove all Hidden cards from this Battlefield that do not share a controller with the Battlefield.
461.5.d. Establishing Control results in a Conquer if that player has not yet scored this Battlefield this turn. See rule 185. Control for more information on Control. See rule 464.1. for more information on Conquering.
461.5.e. This does not have to be the player that applied Contested to the Battlefield.