वैदेहकव्यञ्जनो वा सार्थप्रमाणं राज्ञः प्रेषयेत् ॥ कZ_०२.२१.२७ ॥
vaidehakavyañjano vā sārthapramāṇaṃ rājñaḥ preṣayet
あるいは、外国人の使者/代理人が、隊商の詳細(証明書/届出)を王に送ってもよい。
It creates parallel channels of information to detect collusion or manipulation by intermediate officials and strengthens central oversight.