A sniffer dog, about eight coppers and knife scanner were at Wanstead Tube tonight as part of an anti-knife operation. People coming through the gates were selected to go through the scanner, having removed anything metal, airport-style. But it was a degree or two more civilised than that – did the scanner beep? It was probably your belt, sir, thank you for your help – though no doubt the atmosphere could changed if the dog had sniffed anything out.
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