Arrest and Booking: the 48-Hour and 72-Hour Rules, Explained Correctly
Two clocks start at a warrantless arrest, and nearly every website confuses them. The first is federal: under County of Riverside v. McLaughlin, a judge must find probable cause for the arrest within 48 hours — Las Vegas Justice Court runs this as the “48-hour hearing,” typically a paper review the arrestee never sees. The second is Nevada’s own rule: under NRS 171.178, an arrestee must be brought before a magistrate “without unnecessary delay,” with a 72-hour outer limit excluding weekends and holidays — the initial appearance where charges are presented and custody is addressed.
Why the distinction matters: they are different rights with different remedies, and a violation of either is a defense issue your lawyer should be checking from day one. Practically, the first three days after a Las Vegas arrest are decided in rooms you’re not in — which is exactly why families should have counsel engaged before the initial appearance, not after.