Detectives investigating the murder of Surrey schoolgirl Amanda Dowler have ruled out any connection to a church where a mystery DNA link was discovered.
DNA was found on a coffee mug stolen from a Wearside church
In January police made a DNA match between samples taken from a coffee cup found at St Paul's Church in Ryhope, Sunderland, and a stain on an item of clothing in the 13-year-old's bedroom.
Officers from Surrey visited the Ryhope area and took swabs from 55 men linked to the church, but none matched the DNA.
The sample was found when police visited the church after a break-in there in October 2002.
Through a national database the DNA was found to match the stain on a corset-style bodice belonging to Amanda.
On Friday, a Surrey Police spokesman, said: "We have now decided this line of inquiry is unlikely to be of further benefit to the investigation so it has been discontinued at this time.
This was something of a mystery that we though was probably just a coincidence
"The line of inquiry was considered unusual from the outset and required explanation.
"This was something of a mystery that we thought was probably just a coincidence. It was always a very peripheral line of inquiry.
"But we have gone to every conceivable length to track down even the peripheral lines of inquiry."
It is thought Amanda, known as Milly, bought the top from the New Look store in Kingston, Surrey, but never wore the garment.
One idea is that the top was originally sold in Sunderland but was taken back to the shop and redistributed to the south of England.
Milly disappeared while walking home from school in Walton-on-Thames, Surrey, on 21 March 2002.
Her remains were discovered in Yateley Heath Woods in Hampshire on 20 September, 2002.