Around 30% of youth offenders in Dartford reoffend within a year, according to a Ministry of Justice report.

From October 2015 to September 2016, 48 young offenders either left custody, received a non-custodial conviction or received a caution. Of those, 15 committed a proven reoffence within a year.

Each reoffender committed an average of 2.1 offences within this period.

The 48 young offenders, aged under 18, also had 109 previous convictions between them.

In England and Wales, 42% of juvenile offenders committed another crime within a year, committing an average of 3.9 offences each.

The Ministry of Justice has cautioned that, since the figures only measure offences resulting in convictions or cautions, this could be a significant underestimate of the true level of reoffending.

Across England and Wales, juveniles are more likely to reoffend than adults. In Dartford 24% of 657 adult offenders reoffended over the same period. Nationally, 29% of adults reoffended.

Youth justice practitioner on the Law Society criminal law committee, Greg Stewart, said that the way that juvenile crime is handled could be behind high youth reoffending rates.

According to Mr Stewart, who has been a practising defence lawyer for 25 years, children tend to only appear in court for more serious crimes, rather than minor misdemeanours.

He added: “As a result, those young people who are left still offending are the ‘kernel’ of offenders, often with complex and compound issues and serious problems at home and school.”

Mr Stewart said that budget cuts to local youth programs have also contributed to the problem.

He said: “The savings that will have been made by the reduced charging rates are not being reinvested in rehabilitating the more vulnerable repeat offenders.”

The Standing Committee for Youth Justice, a multi-member organisation with members including Barnardo’s and the NSPCC, says that the harsher the punishment, the more likely under-18s are to reoffend.

Deputy chairman of the committee, Penelope Gibbs, said: “If we want to reduce the reoffending of children we need to try and keep them out of the formal criminal justice system and out of prison.”

Rory Geoghegan, head of criminal justice at independent think-tank the Centre for Social Justice, said if a young person ends up in the criminal justice system, rehabilitation programs that foster strong community links can also prevent reoffending.