Pilots, you may have seen discussion on another thread about the recent MH incident at MEL, and what the security forces did and didn't do (such as get the passengers off sooner rather than later).
This may fall into the category of commenting on security, and if so understandably won't be answered (but I hope maybe in generalities), but:
If a plane has landed, and the pilot and crew are not incapacitated or obviously under duress and can communicate that to the outside, does the captain still technically have 'control' of the aircraft, in Australia? If security authorities wish to board either 'peacefully' or with forceful intent do they strictly need the captains OK? Or can some security bod effectively declare 'force majeure' and do what they wish, irrespective of what the captain may actually say, or want?