Prosecutors have not ruled out a retrial for three men who have already faced court over the murder of Asian waiter Surjit Chhokhar.

The development followed fresh reports yesterday that changes to the laws governing Double Jeopardy could result in Ronnie Coulter, his nephew Andrew Coulter and David Montgomery facing a fresh trial.

All three had previously been charged with Mr Chhokhar's murder in 1999 in Overtown, Lanarkshire, but were found not guilty after two separate trials.

Under changes to the Double Jeopardy Act, they can face a new trial if fresh evidence is found.

A Crown Office spokesman said: "The Lord Advocate has asked the Solicitor General to review cases which may be able to be prosecuted anew under the new Double Jeopardy Act."