Arthashastra
शुद्धं वा मद्यं दण्ड मुख्येभ्यः प्रदाय मद काले रस सिद्धं प्रयच्छेत् ॥
Alternatively, after offering pure wine to the high-ranking officers, one should administer to them a potion prepared with poison at the time of their intoxication.
english translation
zuddhaM vA madyaM daNDa mukhyebhyaH pradAya mada kAle rasa siddhaM prayacchet ॥
hk transliteration by Sanscript