National Lawyers Guild’s “Know Your Rights” pamphlet (national): http://www.nlg.org/resource/know-your-rights
Center for Constitutional Rights “If An Agent Knocks” booklet: http://ccrjustice.org/if-agent-knocks-booklet
Flex Your Rights Website: https://www.flexyourrights.org
ACLU – Washington “Know Your Rights” Guide: https://aclu-wa.org/docs/know-your-rights-guide-protests