OPP investigators probing allegations that former senior aides in the Ontario premier’s office destroyed government documents have searched a Toronto building for their e-mail records. A search warrant obtained by OPP Det.-Const. Andre Duval allowed investigators into the offices of the Ontario provincial government cyber security branch on Jarvis St. last month. The warrant allowed the seizure of the entire e-mail mailboxes and back-up tapes of former chief of staff David Livingston and deputy chief of staff of communications and strategy Laura Miller. Both Miller and Livingston have previously stated through lawyers and in person at a government committee investigating the $1-billion cancellation of gas plants that they were not involved in any wrongdoing.