Yeah, I commemorate [some event that took place on the 11th of September]

At around 11:00 pm on Saturday 11 September Robert Rowlands, an amateur radio enthusiast living in a flat in Wimpole Street, half a mile (800 m) away from the Lloyds branch, picked up the walkie-talkie conversations of the gang. He heard comments over the radio that made him think a local cigarette shop was being burgled. At 11:30 pm, he phoned the police; the local police officer thought it was a prank call, and told Rowlands that he should record the conversation if anything interesting was overheard. Rowlands thought it was a good idea, so used a small cassette recorder to make a record of the conversations.

At 2:00 am Rowlands decided he had enough material recorded to call the police again; he did not recontact his local station, but phoned Scotland Yard directly.

After the end of the investigation Scotland Yard considered prosecuting Rowlands under the Wireless Telegraphy Act 1967 for listening to unlicensed transmissions, but no charges were laid against him. Shortly after the court case, Lloyds Bank sent him a cheque for £2,500 to thank him for his actions.

This is why you should always keep your mouth shut and never talk to the pigs.