Arthashastra
निष्पत्तौ निक्षिपेद् वादम् आत्मानं वा अपवाहयेत् । अभियुक्त उपजापात् तु सूचको वधम् आप्नुयात् ॥
When the charge is proved, the informant may impute the tale-bearing to someone else or clear himself in any other way from the blame. Any informant who withdraws his assertion prevailed upon by the insinuations of the accused shall be condemned to death.
english translation
niSpattau nikSiped vAdam AtmAnaM vA apavAhayet । abhiyukta upajApAt tu sUcako vadham ApnuyAt ॥
hk transliteration by Sanscript