DNA has linked a man from Brampton to a 10-year-old sexual assault case in Guelph.
Guelph Police Service were called about a sexual assault in the downtown area in March of 2012.
Investigators were told by a female that she had been sexually assaulted in a vehicle after leaving an establishment.
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There were no charges laid at that time.
Investigators say the Centre for Forensic Science were able to confirm the DNA at the scene was that of the Brampton man.
A man, now 39 years old, was arrested last Thursday and was charged with sexual assault.
He will appear in a Guelph court on Dec. 9.