POLICE were optimistic today that they were closing in on the killer of Gemma Adams.Detective chief inspector David Skevington, who is overseeing the inquiry into the vice girl's death, said the force had received more than 30 calls from the public and said “both the number of calls and information received has been very promising”.

POLICE were optimistic today that they were closing in on the killer of Gemma Adams.

Detective chief inspector David Skevington, who is overseeing the inquiry into the vice girl's death, said the force had received more than 30 calls from the public and said “both the number of calls and information received has been very promising”.

Despite the positive response, searches in the area where Gemma's body was uncovered have so far failed to provide police with any significant or useful leads, the force revealed today.

More than 50 people are now working on the murder investigation, conducting house-house inquiries and fingertip searches of the area.

However, the searches have so far proved fruitless, with a spokeswoman for the force saying “nothing significant or useful has been recovered or found yet”.

Police still do not know how Gemma, of Blenheim Road, Ipswich, was killed but it is believed there were no significant visible injuries to her body.

The force spokeswoman today revealed that the post-mortem examination had revealed Gemma was not the victim of a sexual assault and said an inquest into her death was due to open at Ipswich Crown Court today.

Divers from Norfolk police were called in yesterday to scour the waterways near to where the 25-year-old's body was found on Saturday.

Police are still appealing for information about the circumstances surrounding Gemma's death.

They are urging any ramblers, walkers or fisherman in Hintlesham to look out for any possible evidence and report any suspicious activity.

Police particularly want to speak to people who visit the area behind Hintlesham Fisheries on the A1071, where Gemma's body was found.

They are also keen to hear from anyone who was in the Handford Road area when Gemma was last seen at 1.15am on Wednesday, November 15.

Police have also said they would like to speak to anyone who may have seen other unusual activity, such as people vigorously cleaning their car as the body could have been taken to Hintlesham in a vehicle.

Officers are yet to search possible routes to the village from Ipswich and are currently concentrating their efforts where the body was found.

There have been incidents in the past when prostitutes have been taken to secluded areas in Hadleigh Road, Ipswich but it is not known if this was the case with Gemma.

Fears are still continuing to grow today for 19-year-old Tania Nicol who disappeared on Monday, October 30.

Detective chief inspector John Quinton, who is overseeing the inquiry into Tania's disappearance, visited Hintlesham briefly yesterday.

He said he was on site due to “professional interests”.

A brothel madam told the Star she fears another woman may go missing and said she believes the same man has targeted both woman.

The woman, who ran the brothel where Gemma used to work, said police had told her earlier in the week that they “had nothing to go on” and said police were desperate for information.

She said: “I had intelligence up here and they are desperate for any help I can give them because they have said they are no further forward than they were on day one.”

Anyone with information should call Suffolk police on 01473 613538 or Crimestoppers on 0800 555111.