A year after a baby girl's body was found in Bradford, Police are yet to find her mother.
The infant's body was discovered by staff at a waste management depot in Shipley on May 19 2011. She was just two or three days old.
Over the past 12 months officers have sent 37,000 letters to homes in Leeds, Bradford and surrounding areas to trace the girl's mother.
They are now consulting with Her Majesty's Coroner with a view to infant's remains being released for a funeral.
Scientific work has also been carried out to provide a full DNA profile of the child. Whilst a matching profile is not on record of the mother, it has helped further the investigation.
It is believed the baby was not born in hospital and a post mortem examination has failed to establish a cause of death.
Anyone with information should contact DS Ian Lawrie at the Homicide and Major Enquiry Team on 01924 334676. The team can also be contacted directly via email at email@example.com. Information can also be given to CrimeStoppers in complete confidence on 0800 555 111.