Three robbers who carried out a string of robberies during a five month span have been handed "significant sentences."

Cleon Perry, of Kent Close, Mitcham, Edmund Brown, of Coates Close in Thornton Heath and Matthew Frazer of Mersham Road, Thornton Heath carried out seven commercial robberies and attempted robberies, netting more than £100,000 in the process.

During the trial at Croydon Crown Court, the judge said the robbery offences involved “significant pre-planning” and that the “defendants were not afraid to mete out violence."

In handing out her sentences, she believed there was an “overwhelming likelihood of the defendants committing further robberies even after a significant period in prison”, and that the trio “showed no remorse."

Perry previously pleaded guilty to two counts of attempted robbery and five counts of robbery. On August 24 he was sentenced to 15 years’ imprisonment.

Brown previously pleaded guilty to two counts of attempted robbery and five counts of robbery. He was sentenced to 13 years and four months’ imprisonment.

Frazer previously pleaded guilty to one count of robbery and one count of attempted robbery. He was sentenced to eight years and eight months’ imprisonment.

Officer in the case, Detective Constable David Reed, of the Met’s Flying Squad, said: “Such was the weight of evidence gathered against these three men, that they had no option but to plead guilty.

“These offences involved high levels of violence and have been extremely traumatic for the victims involved. I would like to thank all the businesses who have assisted us in our investigation; the support of the staff has helped us secure a conviction against the group.

“These convictions highlight the professionalism, tenacity and unique qualities demonstrated by the Metropolitan Police Flying Squad. This was a complex and protracted investigation which has resulted in the removal of three dangerous criminals from the streets of London for some considerable time."