A peace officer may arrest an offender without a warrant for any offense committed in his presence or within his view. Probable cause along with exigent circumstances may justify a search or entry without a warrant.2 This is also known as the "emergency doctrine. A peace officer may arrest, without warrant, when a felony or breach of the peace has been committed in the presence or within the view of a magistrate. The judge may also issue an arrest warrant if there is reason to believe the offender will not voluntarily appear in court at the scheduled time. (a) Any peace officer may arrest, without warrant: . . . . A fugitive may be held for no more than 90 days on a fugitive warrant in Texas. If the fugitive is not picked up in that time, the prisoner must be released. There are occasions where a probable cause affidavit can go so far as to allow a warrantless search and seizure or a warrantless arrest. Police need a search warrant to search through your cell phone.