In Nevada, the police need a current and valid warrant to arrest a suspect for a criminal charge. Nev. Rev. Stat. § 484A.Police need a current and valid arrest warrant in order to arrest a person in Nevada unless they have probable cause to believe the suspect committed a crime. In Nevada, law enforcement officers can lawfully arrest you without a warrant in the following three scenarios. If the offense is a misdemeanor, the arrest cannot be made between the hours of 7 p.m. Thereafter the answer shall be heard as if the person had been arrested on a warrant. Source: Section 179.205 — Arrest without warrant. NRS 171.106 - Issuance of warrant or summons upon application, complaint or citation; no-knock warrants. All reasonable and necessary force may be used to effect an entry into any building or property or part thereof to execute a search warrant. If the person does have pending cases in Nevada, they will not be released until all pending cases are resolved.