Cayman Islands Prime Minister McKeeva Bush was arrested Tuesday on suspicion of financial irregularities and importing explosives without a permit, police on the British overseas territory said. Bush was arrested Tuesday at his home on suspicion of theft related to the misuse of a government credit card, and abuse office \"in connection with the alleged importation of explosive substances without valid permits on or before February 2012,\" the Royal Caymans Police Service said in a statement.