Originally Posted by
hoss183
I wonder why it's necessary to divert if the problem case has already been restrained? Let them stay trussed up till destination and avoid the costs and disruption to others. SOP i guess.
As WingNut said, while the aircraft is still in the sky there remains the threat of another psgr taking matters into their own hands and seeking retribution. Also, having someone TuffCuff'd to a seat has to be regarded as a temporary solution. If an (unrelated) emergency were to develop you can't have people chained up like that.