Prosecutors are to seek a retrial in the case of a dental nurse accused of poisoning her boss's coffee after a jury failed to reach a verdict.

BBC: 'Mercury coffee' case accused to face retrial

The Public Prosecution Service is seeking a retrial in the case of three Ballymena men whose convictions were recently quashed for the 2006 murder of teenager Michael McIlveen.

BBC: Michael McIlveen murder retrial sought by PPS

But the court allowed for the possibility of a retrial of Florence Cassez, 37, saying there were violations in the case.

BBC: Florence Cassez behind bars, file picture

Resisting the bid to have the case sent back to a different judge for a retrial of the civil claim, Augustus Ullstein QC said that to allow "a second bite of the cherry" would create serious injustice.

BBC: Family of Kevin Lavelle in legal bid to find killer

But the prospect of a retrial faces long odds, according to a person familiar with the case, and couldn't include the count on which Mr. Edwards was acquitted.

WSJ: Judge Declares Mistrial in John Edwards Trial

Mrs May took the case to the Court of Appeal after judges ruled last November Abu Qatada could not be deported to Jordan for a retrial over alleged involvement in terrorism plots.

BBC: Abu Qatada deportation decision due

The decision that Junior Bayode will not face a retrial for a schoolboy's murder at London's Victoria Station marks the end of a case which saw an unprecedented use of a law called joint enterprise.

BBC: Is joint enterprise a 'lazy law'?