अनभियोगश्चार्थेष्वागन्तूनामन्यत्र सभ्योपकारिभ्यः ॥ कZ_०२.१६.१३ ॥
anabhiyogaś cārtheṣv āgantūnām anyatra sabhyopakāribhyaḥ
外来の商人(来訪商人)は、商取引に関して請求や嫌がらせを受けるべきではない――ただし、評判の良い市民(または市の保護下にある者)に害を与えた場合を除く。
It improves the kingdom’s reputation as a safe market, attracting trade volume and thus customs/revenue.
To prevent outsiders from exploiting immunity to injure protected citizens; the state preserves trust by enforcing accountability where harm is done.