Mr Webster's first wife Claire died in 1994
A man at the centre of an investigation into his wife's death in Aberdeenshire 14 years ago was last seen by police in Cornwall.
Claire Webster died in 1994 after the car driven by her husband Malcolm hit a tree near Oldmeldrum.
His second wife survived a crash in New Zealand in 1998 but was found with a sedative in her system. Mr Webster failed to appear in court.
Police in Cornwall spoke to him in January but did not know he was wanted.
Earlier this year, Strathclyde Police was told Mr Webster was living in Oban but had gone missing.
Police in Cornwall have now confirmed that a man, believed to be Mr Webster, presented himself at Bodmin police station.
They were only told there was concern for his welfare, not that he was wanted by the police in New Zealand.
An investigation into Claire Webster's death had concluded that she had died accidentally.
However, Grampian Police is now re-examining the crash following a crash involving his second wife, Felicity Drumm.
After the crash involving her, he failed to appear in court in 2000 on a number of charges and is the subject of four warrants, which include arson and disabling or stupefying his victim.
That led to questions over the exact circumstances surrounding his first wife's death.