Everyone knows that those ISIS lads like to get to the match early for a good old sing song before kick off. None of this running late or stuck in the pub stuff for them. They like a good atmosphere and are in there getting the chants going an hour before kick off.
Therefore, the policy of getting to 10 minutes before kick off and letting everyone charge in makes perfect sense to me. Anyone saying it is mad must not have the same detailed understanding of the nature of the terrorist football supporter that City and Showsec have.
Also, I wonder how the conversation would go if one of these wands goes off when searching someone who has bad intent:
"Excuse me, sir. Can you show me what is in the bag."
"Why, yes, it's an AK47."
"That's against stadium policy, I'm afraid."
"Really? Oh well, I suppose there's loads of security here now to prevent me from entering?"
"Well, no, there's me, a twelve year old with a yellow coat and my colleague who is four stone overweight and diabetic"
"OK, well, here's my gun. Sorry to trouble you. How do I go about getting it back?"
"Write to supporter services and express regret for breaking the regulations. You will be issued with a 3 match ban but they reduce it if you express enough regret"
"Ah, fuck it, I'm a fucking united fan anyway. Keep the gun. See you later."