The number of children arrested in Cheshire has dropped by 31% over the past five years.
Figures published this week by the Howard League for Penal Reform reveal Cheshire police arrested 1,292 boys and girls aged 17 or younger last year.
That compares to 1,870 in 2010.
Frances Crook, chief executive of the Howard League, said: “I applaud the police for their success in reducing child arrests. The Howard League is proud to have played its part in a significant change to the policing and life chances of children.
“It is particularly gratifying that the reduction in child arrests matches exactly the reduction in custody for children, and it is no coincidence.
“We have stemmed the flow of children into the justice system and the consequential downward spiral into crime and custody.”
Referring to the fact the number of child arrests increased in Cheshire over the past year from 1,266 to 1,292, she said: “It is a little disappointing that 13 forces, including Cheshire police, have not maintained the momentum in the last year.
“We are looking forward to working with them to address this challenge.”
Nationwide, police made 102,666 arrests of boys and girls aged 17 and under during 2015 – a 58 per cent reduction in five years.
Many forces have reviewed their arrest procedures and policies after the Howard League’s positive engagement with them.
The statistics, which were published in a Howard League briefing, Child arrests in England and Wales 2015, show that reducing the number of children entering the system stemmed the flow of children into custody.
In Cheshire 1,870 children were arrested in 2010; 1,904 in 2011; 1,508 in 2012; 1,266 in 2014 and 1,292 in 2015.