A Glaswegian who conspired with four other blackmailers to target a man in Stevenage is behind bars.

Alister Galbraith, 31, was sentenced to 27 months in prison by Judge Andrew Bright when he appeared at St Albans Crown Court on Wednesday. He had previously admitted conspiracy to blackmail.

The court heard Galbraith, of Waterside Place in Glasgow, had conspired with four now-jailed blackmailers – Michael Atkinson, 43, Royston Barnes, 53, Patrick Oliver, 32, and Paul Owens, 33 – to demand to know the man’s whereabouts from four other people in Stevenage “with menaces”.

Atkinson, Barnes, Oliver and Owens, all from the north-west of England, were found guilty of conspiracy to blackmail by a jury at Huntingdon Crown Court last August, and jailed for at least five years each. Owens also admitted possession of just under 2kg of amphetamine sulphate, better known as speed, with intent to supply.