Okla. Stat. tit. 22, § 22-36.2: National Park Service rangers - Arrest authority and

immunity from suit.

A National Park Service ranger who, in the official capacity as

park ranger, is authorized by law to make arrests shall, when making

an arrest in this state for a nonfederal offense, have the same

legal status and immunity from suit as a state or local law

enforcement officer if the arrest is made under the following

circumstances:

1. The Park Service ranger reasonably believes that the person

arrested has committed a felony in the presence of the ranger or is

committing a felony in the presence of the ranger;

2. The Park Service ranger reasonably believes the person

arrested has committed a misdemeanor that amounts to a breach of the

peace in the presence of the ranger or is committing a misdemeanor

that amounts to a breach of the peace in the presence of the ranger;

or

3. The Park Service ranger is rendering assistance to a law

enforcement officer of this state in an emergency or at the request

of such officer or pursuant to a memorandum of understanding between

the state or a political subdivision of the state and the United

States Department of the Interior National Park Service.