Islington police officers seized a nine-inch knife stashed in the public stairwell of a Clerkenwell tower block at the weekend.
The blade was found by a resident of the Chadworth House Estate, off Lever Street, at around noon yesterday.
Meanwhile, another knife was found by Caledonian Road officers - in what appeared to be a communal garden area. The Gazette has approached the Cally Police Team for further information.
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