Three Vietnamese men accused of running a £185,000 cannabis factory at a self-storage unit have been freed due to a courtroom hitch.

Ngoc Anh Duong, 26, Minh My Ho, 20, and Long Van Le, 22, were due to appear on petition at Dundee Sheriff Court on Monday but the unavailability of an interpreter led to a sheriff throwing out the charges against them just days after their arrest.

Police raided an industrial unit in Auchtermuchty, Fife, on Friday to discover a vast cannabis growing operation with 600 mature plants and 240 seedlings, estimated to have a street value of £185,000.

The case against them called first as a summary complaint - used for prosecuting lesser crimes with a maximum jail term of one year.

That complaint was continued without plea until Tuesday, when prosecutors had the trio appear in private on petition, which would allow them to be tried by jury in the Sheriff or High Courts and receive prison terms of up to 14 years.

However, lawyers representing the men are understood to have argued that there had been an abuse of process in the way the Crown had handled the case.

Because a Vietnamese interpreter was not available on Monday the lawyers could not take instructions from their clients, which could have seen them plead guilty to crimes at the lesser level.

That would have led to a maximum jail term of a year.

Sheriff Simon Collins QC ruled against a Crown argument to allow the petition to stand and dismissed the petitions.

The Crown declined to recall the summary complaint and the trio were released from custody.

The Crown Office and Procurator Fiscal Service said they could still bring criminal proceedings in the future.

A spokesman for COPFS said: "The case could not go ahead as police were unable to provide an interpreter in the time available.

"The outcome does not prevent future criminal proceedings."

It was alleged that all three produced cannabis at a storage unit at Bellview Self Storage, Station Road, Auchtermuchty, between January 19 and April 22 this year.

They were further alleged to have intentionally damaged electrical plant in that they bypassed the electrical supply line.

Long Van Le and Minh My Ho each faced charges of attempting to pervert the course of justice at Kirkcaldy Police Station on April 22 by allegedly giving false dates of birth.