From https://www.earthfirst.uk/resources

Yet who am I to describe how to conduct such matters? One of the main points about actually going out and doing something is to discover that much of what you thought you knew was wrong. There are no experts, there are no safeguards, you are responsible,
and you can change the world…

http://rhizomenetwork.files.wordpress.com/2010/12/delia_smith_basic_blockading.pdf