Baby death 'could not have been predicted'
The death of a seven-month-old baby whose parents were jailed for cruelty "could not have been predicted or prevented", a report has said.
Mohammed and Nafisa Karolia, from Blackburn, Lancashire, are currently serving five years in prison.
They were said to have swapped the identity of the dead baby with her twin sister in a bid to hide her injuries.
A serious case review found there were "no indications or suspicions" that the abused twin was being mistreated.
Gladys Rhodes White, Blackburn with Darwen Council's strategic director of children's services, described the case as "completely unique" and one which had "baffled them".
She said: "The council had no previous involvement with this [family] and in all contact the child's parents had from healthcare professionals the parents appeared to be providing good physical and emotional care."
The Karolias were sentenced at Preston Crown Court in October.
They denied abusing their daughter, who died in June 2009.