Arthur Labinjo-Hughes: Tough sentences 'absolutely no consolation', says PM
Prime Minister Boris Johnson says that "we will leave no stone unturned" to find out what opportunities were missed to save Arthur Labinjo-Hughes.
Solihull's Local Child Safeguarding Partnership is carrying out an inquiry into the death of the six-year-old.
Emma Tustin was convicted of Arthur's murder and jailed for 29 years, while his father, Thomas Hughes, was found guilty of his manslaughter and jailed for 21 years.