यं वा नानालोहक्षाराणामङ्गारभस्मासंदंशमुष्टिकाधिकरणीबिम्बटङ्कमूषाणामभीक्ष्णक्रेतारं मषीभस्मधूमदिग्धहस्तवस्त्रलिङ्गं कर्मारोपकरणसंसर्गं कूटरूपकारकं मन्येत तं सत्त्री शिष्यत्वेन संव्यवहारेण चानुप्रविश्य प्रज्ञापयेत् ॥ कZ_०४.४.२० ॥
yaṃ vā nānālohakṣārāṇām aṅgārabhasmāsaṃdaṃśamuṣṭikādhikaraṇībimbaṭaṅkamūṣāṇām abhīkṣṇakretāraṃ maṣībhasmadhūmadigdhahastavastraliṅgaṃ karmāropakaraṇasaṃsargaṃ kūṭarūpakārakaṃ manyeta taṃ sattrī śiṣyatvena saṃvyavahāreṇa cānupraviśya prajñāpayet
Whomever one suspects to be a counterfeiter—frequently purchasing various metals and alkalis, charcoal and ash, tongs and tools, anvils/dies, stamps, crucibles; showing hands and clothing smeared with soot/ash/smoke; associating with metalworking equipment—an agent should enter his circle as a “disciple” and through transactions, and then obtain confirmatory intelligence.
Behavioral and supply-chain profiling (frequent purchase of specific inputs/tools, soot-marked clothing, equipment associations) followed by deep infiltration as an apprentice to confirm and document the crime.