Superintendent Richard Baker from West Midlands Police says he is still working closely with the family of Christina Edkins. He says they face a long road to justice.
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Part of the northbound carriageway will be shut on Thursday 1 June.
Ramadan is the month in which Muslims refrain from eating and drinking during the daylight hours. This year it runs from May 26 to June 24.
A young offenders institute would be converted into a category three prison.