CrPC Section 144 vs BNSS Section 163

The CrPC Section 144 to BNSS Section 163 transition is one of the rare instances in the BNSS where the change is almost entirely cosmetic — same power, same procedure, same jurisprudential framework, different number. The 60 days vs 2 months distinction is essentially nil in practical terms. What matters more is what doesn't change: the requirement for written material facts; the possibility of ex parte orders in genuine emergencies; the right of any aggrieved person to seek revocation; the proportionality requirements from Anuradha Bhasin; and the State Government's ability to extend for up to 6 months. For practical lawyers and law enforcement, the message is simple: everything you knew about Section 144 applies to Section 163 — just update the number.