A teenager has been sentenced after committing a spate of crimes in High Wycombe, including robbery and threatening a man with a weapon.

The 15-year-old boy from High Wycombe, who cannot be named for legal reasons, was sentenced to 18 months in a young offenders institute after being convicted of one count of robbery of personal property, one count of threatening a person with an offensive weapon in a public place, and two counts of possession of cannabis.

The robbery took place at around 5.40pm on February 6 this year, in an alleyway running between the Pastures, Brindley Avenue and Hithercroft Road, High Wycombe, in which the victim lost consciousness after being punched and slapped.

The victim, a 15-year-old boy, was walking towards the town centre when he was confronted by the other teenager and two other men, who demanded money from him.

They then attacked the victim by punching and slapping him while his wallet and cash were taken, causing him to fall down and lose consciousness.

Police said he was left with blurred vision, as well as swelling and bruising to his left eye and cheek bone.

When the offender was arrested by police officers on February 8, they also found him in possession of cannabis.

In the weapon offence, the victim, a 49-year-old man, was driving on Oakridge Road on March 7 at around 2.30pm, when he came across the teenager walking in the road with another youth.

The victim beeped his horn to let them know he was there and then drove around them, stopping his vehicle further along the road to make a delivery.

He was then approached by the two youths. The 15-year-old threatened him with what is believed to be a knife before leaving the scene.

The police were called and the teenager was arrested, and was again found to be in possession of cannabis.

He was charged with all the offences on 24 April and received a two year Criminal Behaviour Order, in addition to the 18 month sentence, last Friday (September 1).

Investigating officer detective constable Caroline Timmis, based at High Wycombe police station, said: “I hope that this sentencing will send out a strong message to any other offenders in the Wycombe area, that these type of offences will not be tolerated.

“We will identify you, we will convict you, and you could end up serving a custodial sentence.”