Original sentence: A commission of inquiry into the riot was headed by Supreme Court Justice Thomas Dohm.Following weeks of arrests by undercover agents in Vancouver as part of a special police operation directed by Mayor Tom Campbell, police attacked a protest demonstration in Gastown against the use of undercover agents and in favour of the legalization of marijuana.Justice Dohm was highly critical of the police's conduct and described the incident as a police riot.Of around one thousand protesters, 79 were arrested and 38 were charged.Police agents who had infiltrated civic groups testified that the entire incident was organized by professional revolutionaries including local poets Richard Rathwell, Michael Boughn and others [citation needed].The Gastown Riot, also known as "The Battle of Maple Tree Square," occurred in Vancouver, Canada, on August 7, 1971
Edited sentence: An inquiry (The Gastown Inquiry) followed in which police agents who had infiltrated civic groups testified that the entire incident was organized by professional revolutionaries including local poets Richard Rathwell, Michael Boughn and others [citation needed].Following weeks of arrests by undercover agents in Vancouver as part of a special police operation directed by Mayor Tom Campbell, police attacked a small protest demonstration in Gastown against the use of undercover agents and in favour of the legalization of marijuana.Rathwell was also later named in the Houses of Parliament by the Solicitor-General as one of Canada's most dangerous revolutionaries, following the invasion of the United States by anti-war protesters at Blaine, Washington which occurred soon after the Gastown Riots [citation needed].The Gastown Riots occurred in Vancouver, Canada, in 1971