CCTV released by Westminster Council shows the moment an innocent shopper is targeted by a fraudster on Oxford Street.
A gang member can be seen bending down to pick up a ring - but in this case the target gets away without falling for it, after a warning from a council binman.
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David Perry told police he had been worried about what he might do because of his high hormone levels after the break-up of a relationship.
Parents of obese children rarely spot that their child is overweight, doctors warn.
Staying windy tonight with outbreaks of heavy, showery rain. Minimum temperature 8C.