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15 March 2012, 13:24 | Updated: 15 March 2012, 13:42
Police investigating the murder of Wisbech teenager Alisa Dmitrijeva believe they have made an 'important forensic breakthrough'.
The 17 year old's body was found in woodland in Anmer in Norfolk, close to the Queen's Royal Estate at Sandringham on New Year's Day.
Alisa lived in Wisbech but was originally from Latvia.
She was last seen on the 31st of August 2011 in a green Lexus GS300 car [pictured - right], which has now been found by police.
The car was discovered in a scrapyard in Wisbech, and is now being forensically examined.
Meanwhile, early results from a forensic palynologist, who specialises in identifying pollen and spores, has indicated that there is a very rare composition of spores from fungi at the site where Alisa’s body was found.
According to Police, the pollen types found at the scene, though not unusual in themselves, are also of an unusual distribution.
Detective Chief Inspector Jes Fry, who is leading the enquiry, said: "Work is currently being carried out on soil and debris samples found in the car to identify the pollen and spores in them.
These will then be compared with the results from the samples taken at Anmer.
This may take several weeks to analyse and if a link is identified, it could be a significant step forward in the enquiry."
Anyone with any information relating to the incident is asked contact the Joint Norfolk and Suffolk Major Investigation Team at Norfolk Constabulary on 101 or Crimestoppers anonymously on 0800 555 111.