There are hundreds of pages of lists of unions and protest groups and activities and strikes which were observed and noted by the RCMP undercover agents and their moles and snitches. If you are not in Ottawa, you should ask the NAC to make a copy of the finding aid available to you in your city through the office of your local Member of Parliament. The more direct way to find out if your union is on the list is to call or mail the archivist in Ottawa. She will then give you the volume number, and inform you of how many file parts make up the total file. Now, before you become all worried that this takes lots of time and money and knowledge, let us assure you that it does not.
Requests can be, and often are, hand-written.
Although forms for making requests are available from public libraries and government offices, they are not required. You can use the sample letter below. Just describe in as much detail as possible the records you seek. However, you could simply give the name and location of the protest group, and have the NAC look it up for you. In the event that they are not forthcoming with the files, making a complaint to the Information Commissioners is free, and can be hand-written in one sentence.