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Kris Lech spend £500 on the Yamaha bike, spending a further £700 on parts for the machine, which he planned to use for his work as a handyman, reports the Scotsman.
But six police officers later arrived at his home and took the motorcycle away with them, following a four-year search for "stolen property".
A spokesman for Tayside Police - which was set up in 1975 after an amalgamation of the previous three unitary authorities of Perth and Kinross Council, Dundee City Council and Angus Council - said an investigation is ongoing and Mr Lech will be contacted with details of a refund.
Mr Lech said: "My girlfriend was highly stressed and angry and I was devastated when I found it was gone after all the work I'd done."
Posted by Emily Swanson
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