Big interview: Phase two for youth justice - Ellie Roy, chief executive, Youth Justice Board

"We are through the first flush of setting this thing up," she says.

"The youth offending teams are beginning to mature and the board is into a second phase of development."

Roy believes the first phase was a success. In particular, she says, the formation of youth offending teams was "critically important", and the work done on this has gone well. But she also thinks there is a lot still to do.

"As the board developed its vision of how to work with youth offending teams, there was a strong sense of wanting to set the agenda but also to genuinely support youth offending teams in how they do their business. That is really important. It is no good just acting as a regulatory body that sets targets and performance indicators and then penalises people when those aren't achieved."