A Falkirk trade union leader says he fears that Green Freeports, such as the one soon to be opened in Grangemouth, could be a "Thatcherite con" that will weaken workers' rights.
Kevin Robertson, who is the chair of Falkirk Council branch of Unite, took his warning to the weekend's Scottish Labour Party conference where his plea for vigilance won support.
The recent announcement that the UK and Scottish Governments have awarded Green Freeport status to the Firth of Forth and Cromarty Firth was widely welcomed.