I seem to recall that CASA in Australia, prefer people to leave there log books at home to prevent them from being destroyed in the event of an accident, which makes a lot of sense
True. Makes you wonder why CASA are not consistent and require the maintenance release to be also left at home base to prevent it being destroyed in event of an accident. A copy of the maintenance release could easily be left at each port of call just like a passenger manifest. At least there would be an audit trail to see if any recorded defects were likely to be a factor in an accident.