A peer, who allegedly exploited a vulnerable woman, has resigned after a House of Lords report found he breached the code of conduct.
Lord Nazir Ahmed quit as the House made its first ever recommendation for the expulsion of a peer.
The House said Lord Ahmed - who was made a life peer in 1998 - resigned after reading the contents of its conduct committee report.
Published on Tuesday, it found he breached the code of conduct "by failing to act on his personal honour".
The full contents cannot be revealed for legal reasons, but an investigation centred on Lord Ahmed's contact with a woman seeking his help in making a complaint to the Metropolitan Police over a faith healer she believed was exploiting men and women financially and sexually.
In a statement issued through his lawyers, the Rotherham-based peer said he would launch a challenge against the report.
He said: "I am extremely disappointed by the report of the conduct committee which is based on a flawed and unfair investigation process.
"I have always said, and maintain, that the allegations contained in the report are not true.
"Given this I am now going to continue pursuing my appeal to the European Court of Human Rights to remedy this injustice."
Lord Ahmed appealed against the findings and the severity of the sanction.
But the conduct committee, chaired by former Supreme Court justice Lord Mance, dismissed the appeal and recommended his expulsion.
The report will go to the House for approval on Thursday.
Lord Ahmed, a property developer, joined the Labour Party in his teens - but resigned in 2013 after he was suspended by the party.