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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Six Polish men were found at the two businesses, some living at sites, they are thought to have been paid around £1 an hour.
Tahir Mahmood was detained by Police as he was attempting to climb into the roof space of an out-building at his family’s home.
Family man Mr Javeed was the owner of Digbeth business Direct Source 3 and was shot and killed on February 3.