A team of detectives who helped solve the Soham and Jill Dando murders have been called in to investigate the disappearance of a Black Country woman.
Balloons are being released to mark Miss Putt's 18th birthday
Natalie Putt, 18, went missing from her home in Thornleigh, Gornal, in September last year, after saying she was going to the shops.
She took no personal possessions and left behind her three-month old baby son Rhys and boyfriend Kevin McCallum.
Detectives have called in the National Crime Faculty to help with the inquiry.
The Faculty, based at the Police Staff College in Bramshill, Hampshire, helped track down Jill Dando's killer Barry George and Ian Huntley, the man who murdered Jessica Chapman and Holly Wells.
Miss Putt's half sister Rebecca Coggin told BBC Radio WM the family were finding it hard to remain positive.
"I don't want to give up though," she said.
"When I was told about the special officers being brought in I had to sit down because to me that is quite a serious move.
"But these people are well known and have helped other families."
To mark Miss Putt's 18th birthday on Thursday her family will be releasing balloons with her name on.