Ricky Tomlinson has handed in a 100,000 signature petition to Downing Street, calling for the quashing of his 40-year-old conviction over a builders' strike.
Tomlinson was among a number of former pickets, convicted over their actions during the dispute in the early 1970s.
They want their names cleared, after being found guilty in what they believe was a politically-motivated and unjustified prosecution.
Andy Bonner reports.
More top news
NW bears brunt of Storm Brian
Strong winds until midnight on Saturday for the west of the Granada region especially. Gusts 45-55mph later on Saturday afternoon. Unsettled
Explosives experts were called to the nuclear reprocessing site in Cumbria, to help deal with chemical substances.