Police have revealed why they were searching Colliers Wood on Monday afternoon.
Residents reported seeing police cars "flying" down streets with police dogs out in force as well.
Now a police spokeswoman has said: "officers saw a male acting suspiciously in Cavendish Road at 3.09pm on October 14.
"As officers attempted to stop him, the male made-off on foot.
"Officers chased him but he got away.
"The area was searched but there was no trace of the male."
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