A wife could face police investigation after taking her husband, who had multiple sclerosis, to a Dignitas flat in Switzerland where he died in assisted suicide.

Sandra Barclay, 67, escorted her husband Andrew, 65, to the controversial clinic so he could end his life "which every day is a struggle from start to end".

Civil servant Mr Barclay had been told by doctors he could live for another 10 years but the grandfather-of-two said he was unwilling to endure total pain and paralysis for the rest of his days.

Currently assisted suicide and euthanasia are illegal in the UK.

And under the Suicide Act 1961, anyone helping or encouraging someone to take their own life could face up to 14 years in prison, which means Mrs Barclay could face prosecution.

Today Mrs Barclay told The Telegraph: "The law needs to be changed."

But high-profile critics of assisted dying, such as Paralympian Baroness Tanni Grey-Thompson, said the law was in place for a good reason.