they may try not to but that doesnt mean they wont
Doesn't mean they will either, your question was….. well if that was a real bomb vest wouldent shooting him be likely to detonate it.
I would say shooting him doesn’t automatically mean it would detonate it only if they hit the vest, they would try not to hit the vest, if they do it might possibly go off? They may well have tried for a head shot? Who knows. When I detonated gunpowder it was usually an electric current that set it off via a battery coupled to wires, never tried it with a gunshot. I would say heat would set it off though, even though I’ve had large falls of rock drop on the charge and it never set it off.