Secret Executive Council papers were made public yesterday, but large sections dealing with the 1967 riots had been removed. The missing sections cover Exco decisions taken with some unofficial members still prominent in society. They include former leading businessman Sir Kenneth Fung Ping-fan, veteran lawyer Sir Yuet-keung Kan and senior solicitor Woo Pak-chuen. Some intriguing papers did come to light, however, including a proposal to send jailed communist agitators to Britain to serve out their sentences. The policy was never implemented. Other less thoroughly vetted background papers show the secret discussions included banning slogans and 'inflammatory posters', giving extra powers to the police and other security issues. The colonial records were made available under the rule allowing records over 30 years old to be made public. The 1967 riots were triggered by a strike in the Hong Kong Artificial Flower Works in San Po Kong on May 6 when 21 men were arrested. When the violence subsided in October, 51 people had died, including 10 police officers. From May 13 to October 17 that year, almost every Exco meeting has at least one part of the minutes removed, usually straight after a status report from the Commissioner of Police. The minutes of two special Exco meetings during the height of tensions - held at Government House on a Wednesday evening and a Saturday morning - have been cut to little more than a list of those present. A spokesman for the Exco Secretariat responsible for removing the sections said they were taken out under the usual government policy which deals with safeguarding sensitive information. He said sensitive areas included the categories of defence, security, external affairs, immigration and personal matters, adding that the removed sections might never be made public. Professor Adam Lui Yuen-chung, of the Department of History at the University of Hong Kong, said there was no reason why the sections should be removed. 'Whatever was done during the 1967 riots was done by the British Government. Maybe some Exco members are still around, but they were not the ones who decided matters.' Professor Lui said most historians now believed the riots had economic conditions as their cause. At the time, the colonial government blamed 'communist-initiated confrontation'. The riots proved a turning point. In their aftermath, the administration improved housing, education and put priority on other livelihood issues.