Arthashastra
तद् अभिविख्याप्य "रसदौ" इति घातयेत् ॥
Having made this event known to the public, the king may put them (the minister and the cook) to death under the plea that they are poisoners.
english translation
tad abhivikhyApya "rasadau" iti ghAtayet ॥
hk transliteration by Sanscript