SDCL § 42-8-45.1: Arrest without a warrant--Probable cause.

A law enforcement officer may, without a warrant, arrest a person for a violation of the provisions of § 42-8-45 if the officer has probable cause to believe that the person to be arrested has been involved in an accident on the public waters of the state and has violated the provisions of § 42-8-45 and that the violation occurred prior to or immediately following the accident.