Member States shall adopt measures to ensure that the parties concerned by casualties and incidents under the scope of this Directive make every effort to:

1. (a)

   save all information from charts, log books, electronic and magnetic recording and video tapes, including information from VDRs and other electronic devices relating to the period preceding, during and after an accident;

2. (b)

   prevent the overwriting or other alteration of such information;

3. (c)

   prevent interference with any other equipment which might reasonably be considered pertinent to the safety investigation of the accident;

4. (d)

   collect and preserve all evidence expeditiously for the purposes of the safety investigations.