उपलब्धविद्याप्रभावाणां पुरश्चरणाद्यादिशेयुरभिज्ञानार्थम् ॥ कZ_०४.५.०७ ॥
upalabdhavidyāprabhāvāṇāṃ puraścaraṇādyādiśeyur abhijñānārtham
For those whose powers (claims) of acquired arts/skills are known, the authorities should prescribe preliminary observances (such as preparatory rites/discipline) and the like, for the purpose of identification/verification.
It functions as a controlled pretext to observe, test, and positively identify individuals (and their network) under an ostensibly legitimate requirement.
In Book 4’s policing context, it is primarily an administrative tool: a structured pretext for surveillance and verification rather than a purely devotional act.