PPP leader and former president SCBA, Ch Aitzaz Ahsan has said that President enjoys immunity in criminal cases, not in civil cases. Speaking to newsmen outside the Lahore High Court on Tuesday, Ahsan said those, who feel President should appear before the Supreme Court on moral grounds, should take a course of impeachment. The former president SCBA further said that Supreme Court was not powerless; it could ensure implementation of its order under Article 204 of the Constitution.