My limited reading suggests that since the armorer has the ultimate control and responsibility over the firearms, then
only the armorer may open it to verify its status...Actors and extras are in most cases
not certified armorers, and therefore unqualified in these instances to do anything unscripted...But at a minimum, the actors should at least watch the armorer's action in the verification to insure knowledge of what is being handed to them...Once the firearm (whether functional or an inert prop) is in the hands of the actor, no unscripted action involving it is permitted...
This incident in which someone lost her life due to improper set procedures should, in my opinion, lead to a new filming standard in which certified armorers check the status of each firearm as it is placed in the hands of the actor or extra...This action should be captured on timestamped film or video in case it needs to be verified later...In any case, I still believe that only the certified armorer should be the last one to verify the firearm's status, and not the unqualified (and in Baldwin's case, moronic) actor or extra...
It might also be helpful to note the term "armorer" as used in the film industry does not describe a person in a military occupation, nor a person employed in the firearm industry...In the film industry an entirely different standard is set to qualify under union rules as an "armorer"...
...Ben