पूर्वः पूर्वश्चास्य लघिष्ठः ॥ कZ_०९.६.५७ ॥
pūrvaḥ pūrvaś cāsya laghiṣṭhaḥ.
Each preceding (measure) is the lighter one (than the one that follows).
Use a graduated response: start with least severe instruments and escalate only if earlier measures fail or are infeasible.