The investigation into Mrs Armitage’s death is being conducted by North Yorkshire Police.
A spokesperson for the force said it was aware of Mr Armitage’s detention and added: “We understand it relates to his visa status and residence in Thailand and is entirely a matter for the immigration service of the Royal Thai Police.
“Should Mr Armitage be deported, we understand that he will have a choice as to where he goes, which will include return to the UK.
“Should that occur, we will again make every effort to speak to him about the investigation.”
The has not spoken with Mr Armitage but he has previously said he was not involved in his wife’s death, according to The Sun., external
Mrs Armitage, nee Seekanya, was known as the Lady of the Hills during attempts to identify her.
A post-mortem examination carried out after her body was found on 20 September 2004 failed to establish how she died.
There was no sign of violence and hypothermia was ruled out, but detectives could not answer two main questions; who she was or how she met her death.
