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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The female embryos are named as "Emma" and "Isabella" as the star actress faces an unusual court filing in a long-running custody battle.
Men who have been forced by women to have sex against their will are being urged to take part in a new study into the "hidden crime".
A doctor has lost a Court of Appeal challenge against her gross negligence manslaughter conviction over the six-year-old's death.