HER detective work is unsurpassed, her dedication to duty during some of Britain’s most challenging murder cases unfailing.

Keela, a 16-month-old springer spaniel, has become such an asset to South Yorkshire Police that she now earns more than the chief constable.

Her sense of smell, so keen that she can sniff traces of blood on weapons that have been scrubbed after attacks, has her so much in demand by forces up and down the country that she is hired out at £530 a day, plus expenses.

Thought to be the only one of her kind, the crime scenes dog earns nearly £200,000 a year. Her daily rate, ten times that of ordinary police dogs, puts her on more than the chief constable, Meredydd Hughes, who picks up £129,963.

Keela’s considerable talent in uncovering minute pieces of evidence that can later be confirmed by forensic tests has put her in the forefront of detective work across Britain. She was drafted in to help after the stabbing of the young mother, Abigail Witchalls, in Surrey, and has been involved in high- profile cases across 17 forces, from Devon and Cornwall to Strathclyde.

She has already helped to apprehend a murderer after sniffing out blood on a knife.

PC John Ellis, her handler, said that police sent for Keela when the scenes of crime squad failed to find what they were looking for. “She can detect minute quantities of blood that cannot be seen with the human eye,” he said. “She is used at scenes where someone has tried to clean it up. If blood has seeped into the tiles behind a bath where a body has been, she can find it.”

The spaniel can sniff out blood in clothes after they have been washed repeatedly in biological washing powder, and can detect microscopic amounts on weapons that have been scrubbed and washed.

When faced with a “clean” crime scene, Mr Ellis and PC Martin Grimes, Keela’s other handler, will first send in Frankie, a border collie, and Eddie, another springer spaniel, to pick up any general scent. Then they wheel in the big gun.

“We take Keela in and she will find the minutest traces of blood,” Mr Ellis said. “It’s not like looking for a needle in a haystack any more. The other two dogs will find the haystack and Keela will find the needle.”

While the other dogs bark, Keela has been trained to freeze and pinpoint the area with her nose.

Mr Ellis said Keela’s “perfect temperament” and enthusiasm made her a great asset. “We thought we would get one or two deployments a year, but things have just snowballed. Obviously when we are called in by other forces they are charged a fee and it’s quite funny to think she can earn more than the chief constable.”

Mr Hughes showed there were no hard feelings. The chief constable said: “Keela’s training gives the force an edge when it comes to forensic investigation which we should recognise and use more often.” Mr Ellis and Mr Grimes came up with a special training regime to focus on Keela’s remarkable skills. It has proved so successful that the FBI has inquired about it. “The FBI is very interested in how we work because they don’t have this sort of facility in-house and they are looking at setting up their own unit,” Mr Ellis said.

Explore UK News

• Crime News

• Education News

• Health News

• Science News

• Scotland News

Times Recommends

• An officer and a gentle woman
• Dame Helen Mirren is worthy of the Epidaurus
• Foods that can help to prevent swine flu