A Kingston College student has admitted possessing a gun, a silencer, cannabis and a set of scales.

Adamo Kizey, 18, of Cambridge Gardens, Kingston, admitted his guilt late on Friday afternoon, at the outset of his trial at Kingston Crown Court.

Police went to Kingston College on February 2 to arrest Kizey and carry out a search warrant on his home, because they believed he was a drug dealer in Kingston.

When they called him into a room at the college, they asked him if he had anything on him and said “no”.

When officers searched him they found a black semi-automatic Baikal IZH-79 pistol in his jacket, and six rounds of ammunition in his outer pocket.

They then took him home and searched his bedroom, where they discovered 20 wraps of cannabis in a jacket pocket, a silencer for the pistol he kept in a white sock at the bottom of his wardrobe, and a set of digital weighing scales.

Baikals are a favourite weapon in the criminal underworld because of their light weight and size.

They are converted from firing CS gas pellets into live rounds.

New Malden teenager James Andre Smartt-Ford, 16, was killed at Streatham Ice Rink in 2007 by a Baikal, although there was no suggestion Kizey's gun had ever been used.

Detective Chief Inspector Peter Beyer, from the Metropolitan Police Service's central task force, said: "This student was carrying a firearm on college property which posed a significant safety risk to students and teaching staff, as well as the wider community.

“Officers carried out a successful, targeted and discrete operation which has removed another gun from the streets of London.”

Peter Mayhew-Smith, the principal of Kingston College, said: "Our main priority is the safety of our students and unlawful behaviour is not tolerated.

“The incident is the first of its kind and the college will continue working with the police to ensure students are educated on crime related issues."

Kizey will be sentenced on September 24.