Ind. Code § 9-30-2-2
A law enforcement officer may not arrest or issue a traffic information and summons to a person for a violation of an Indiana law regulating the use and operation of a motor vehicle on a highway or an ordinance of a city or town regulating the use and operation of a motor vehicle on a highway unless at the time of the arrest the officer is:
(2) operating a motor vehicle that is clearly marked as a police vehicle;
that will clearly show the officer or the officer's vehicle to casual observations to be an officer or a police vehicle. This section does not apply to an officer making an arrest when there is a uniformed officer present at the time of the arrest.
[Pre-1991 Recodification Citation: 9-4-8-1.]
As added by P.L.2-1991, SEC.18. Amended by P.L.198-2016, SEC.592.