According to the City of London Police, the two were at a fast-food restaurant on Bishopsgate as they stole a mobile phone from a person’s coat pocket before walking away. On the same day, they stole a laptops inside a bag at a licensed premises on Gracechurch Street. Mamma, who also pleaded guilty to an additional seven theft offences outside the city, was sentenced at Inner London Crown Court to 20 months in prison. He was also handed a Criminal Behaviour Order banning him from entering the City of London for five years. Sergeant James Wood, of the Proactive Acquisitive Crime Team at the City of London Police, said:“This is another great result in seeing two prolific bag thieves behind bars.