Corinthian Kemp suffered a severe brain injury in August 2007, just five days after he was born, and died in August this year, having never recovered from his injuries.

A Serious Case Review Panel reported to Kirklees Safeguarding Children board in November last year that shortly after his birth Corinthian was moved to a side ward to try to ensure his safety but was found to be "floppy, and cold and had bruising on the face, neck and upper arm".

The report also said the youngster was left with cerebral palsy, blindness and epilepsy as a consequence of the assault.

Care professionals did not release Corinthian from hospital after his birth for fear he was at risk of domestic violence, as well as concerns about his parents who were thought to be drug users with mental health problems.

The review panel members also heard that in the months before Corinthian's death there had been two serious incidents of domestic violence in his family, details of which had been passed on by police to Children's Social Care but did not result in protective action being carried out.

They found that social workers, health professionals and police all had concerns about the family's well-being but failed to work together and encourage one another to take "assertive action".

The review panel concluded that better inter-agency collaboration before the baby's birth would have led to information sharing, analysis, planning and review.

It also said that various factors, such as the very young age of the parents, their histories of substance abuse, mental ill health and domestic violence, would have presented a "high level of anxiety" when considered in isolation but when looked at in combination with one another would have "painted a different and more worrying picture".

West Yorkshire Police said inquires are ongoing as officers await a pathologist's report to ascertain the cause of death, and they are investigating if charges should be brought.