1. From 3 January 1979 an unofficial strike of all TGWU lorry drivers began. 2. The film ends with Eddie critiquing the Industrial Relations Act 1971 for forbidding unofficial strikes . 3. Unofficial strikes were common in the coal industry.4. BA has said the unofficial strike cost it tens of millions of pounds ( dollars ). 5. Only at the " Marchlewski " plant an unofficial strike council was created, with 26 members. 6. After a strike was narrowly averted in February 1981, pit closures and pay restraint led to unofficial strikes . 7. Undelivered mail piled up Thursday as postal workers continued an unofficial strike in London and several other cities. 8. Passed under the new government of Edward Heath, the Industrial Relations Act 1971 made such unofficial strikes illegal. 9. Their operations were further severely affected during the mid-1970s by both official and unofficial strikes by dock workers. 10. He first came to attention when he led an unofficial strike at Cornes Mill, successfully demanding recognition of the union.