The names of 42 dead children were used by undercover officers to create fake identities but their families have not been told because of the risk to police, a report said today.
Derbyshire Chief Constable Mick Creedon, who is leading an investigation into the activities of police moles, said that, while the relatives deserve an apology, revealing the names used "would and could put undercover officers at risk".
More top news
Study suggest that the number of takeaway outlets has significantly increased over the last 20 years, particularly in the poorest areas.
A teachers' union has suggested the number of teachers facing abuse on social media has more than doubled in just 12 months.
A survey has found that one in five young professionals in the UK consider themselves to have a drinking problem.