In my search on cannabis discussions and study of cannabis faithful I ran into Mike Marinacci who has been doing studies the same and has a book he wrote Psychedelic Cults and Outlaw Churches: LSD, Cannabis, and Spiritual Sacraments in Underground America – He wrote this book which includes some churches I am affiliated with such a THCMinistries and The Healing Church. He describes and walks though rituals, pratices and their legal battles.
He also was in a Talk about it a Harvard this year as well.
https://youtu.be/GgJqldZJInw?si=KHKIKbpG5_5PQvOg&t=3135