Police are hunting a serial fraudster who has conned several elderly people out of their money.
The woman in her twenties usually operates in the evenings, knocking on doors claiming to be a neighbour or a nurse.
She tells her victims she has been locked out of her house and needs money for a taxi to get a spare set of keys from an address in Slough or Kingsbury.
The woman is described as an Asian and has been reported knocking on doors in Cricklewood and Golders Green.
Anyone with information should contact police on the non-emergency number 101.
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