The embattled director of public prosecutions (DPP) is under fresh pressure over an alleged police plot to frame an innocent man for beating his wife.

Alison Saunders is embroiled in the fallout from the failed prosecution of Ade Samuel, who was wrongly accused of domestic violence.

After the collapse of the case, Saunders wrote a letter in support of the decision to charge Samuel with common assault, soon after he had complained about police treatment of his ill wife at their home in north London.

Samuel, 41, claims his protest angered a detective constable at the Metropolitan police, who then allegedly tried to frame him for beating his wife, Jo, whom he cares for 24 hours a day. He has the support of his local