It's hoped lessons can be learned from the investigation by Derbyshire Police into how to prevent the sexual exploitation of children in the future.
A Government inquiry is underway to tackle the problem across the country.
Those working on it say the issue is complicated and difficult to investigate.
But they hope the outcome of the inquiry will help to prevent young people being targeted.
Michael Sibert reports.
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Marches to protest against extremism and terrorism were held in Birmingham city centre today.
After a cloudy and damp evening, the cloud should clear through the early hours of tomorrow.
It will be mainly cloudy with some outbreaks of mostly light rain and drizzle.