I think the time of death would be accurate enough - police confirmed he stayed in a B&B nearby which narrowed down dates. Plus had he been there since July I think his clothes would have been pretty messed up. I found an archived link where you view the pictures of his clothes and they look ok. The winter of 2010 was freezing so he was probably more preserved than most bodies found.
http://www.webarchive.org.uk/waybac...y.police.uk/news/highProfile/canonbieBody.htm
Police statement -
Dumfries and Galloway Constabulary have launched a poster appeal to help identify a body that was discovered in Canonbie in 2010. World wide investigations have yet to reveal the identification of the male and officers hope that the additional information in the poster will bring a breakthrough in the enquiry.
The body of the male was discovered on 20 December 2010 at Burnside Plantation, Canonbie, Dumfries and Galloway. The male is described as being:
40 - 60 years, White Male
Between (58 to 59) or (172.72cm to 175.26cm) in height,
bald head (areas of short hair visible),
He would appear normally to be clean shaven however there is grey stubble visible on the face
There appears to a small scar to the area of his lower right abdomen
He has six teeth missing. There is evidence that his upper left first premolar socket has not fully healed which indicates that he had this tooth extracted possibly within the last 6 months
He was wearing an olive green safari type hat, brown tanned coloured cord style jacket (till receipts from a shop premises in London which were dated 1991 have been recovered from the pockets of this item of clothing), black trousers, light coloured gloves and grey ankle boots (UK size between 6 8)
Recovered near to the body of the deceased was a La Repubblica newspaper dated 22 July 2010, this is a daily Italian newspaper.
It has been established that the male may have been within Burnside Plantation since late November 2010.
Enquiries have now been undertaken Locally, Regionally, Nationally and Internationally, however the male still remains unidentified.
Dumfries and Galloway Constabulary have now released further photographs of the clothing worn by the male and are appealing for any witnesses who have seen this male or can identify his clothing or facial image to contact them on 0845 600 5701 or any police officer.
Information can also be left anonymously with Crimestoppers on 0800 555 111.