Differences
You rightly point out there are differences in the way investigations are carried out between the services, and there are also differences in the way the RTS is produced and authorised. Recognising each others differences in processes, personnel and procedures is a sure fire way of understanding how to do this, and learning from mistakes. Civil and military organisations both make mistakes, independance has nothing to do with it if the learning culture exists.
As for Bismarks comments, I totally agree. Ever heard of RAF Culdrose, or RAF Prestwick. Apparently the Beeb have, as they report from there every time there is a SAR story! Well all suffer from the inaccuracies of the press.
El Colonel!