They are also known for setting strict Kyokuchu Hatto (Shinsen-gumi Rules) to maintain order within Shinsen-gumi, purging those who violated the rules, and for their group flag with one kanji character, "Makoto", and original short coats with mountain-like patterns painted on the sleeves.
隊の規律維持のために厳しい局中法度を定め違反者に対し粛清を行ったことや、「誠」の一字の隊旗や袖口に山形の模様を染め抜いた独特の羽織でも知られる。