Alia Ahmed Jama had had corrosive liquid poured over her.
Her mother, Iman Omar Yusuf was found guilty of unlawful killing and has been detained under mental health legislation.
A serious case review in Birmingham found that the agencies who knew the family failed to work together and probably could have prevented Alia's death.
The report has made the following recommendations
- taking action where behaviour by staff fell below expected standards
- more training for staff about mental health issues
- considering intervening to help a child without the parent's consent
- looking at the needs of children of asylum seekers and taking action.