Man of Honour
Being that these individuals care little for their own safety, I am rather good at taking care of myself but I wouldn't tackle the slightest built potential terrorist who seemed to be acting suspiciously. The best thing you could do is dial 999, even then try and be as discreet as possible.
If they were the real thing, you could not possibly know what they have on them. Not the best example and RIP to the guy, but the tube incident showed how officers armed to the teeth took no chance at all with a potential suicide bomber.
The only situation I could possibly think of where any member of the public could do anything is if an attack were underway, if it was a you or them situation and you had no option. Say a guy walking down the street shooting and you were driving, run him over, if you had chance.
If they were the real thing, you could not possibly know what they have on them. Not the best example and RIP to the guy, but the tube incident showed how officers armed to the teeth took no chance at all with a potential suicide bomber.
The only situation I could possibly think of where any member of the public could do anything is if an attack were underway, if it was a you or them situation and you had no option. Say a guy walking down the street shooting and you were driving, run him over, if you had chance.