Ark. Code § 16-81-404
Any member of a duly organized state, county, or municipal peace unit of another state of the United States who enters this state in fresh pursuit, and continues within this state in such fresh pursuit, of a person in order to arrest him on the ground that he is believed to have committed a felony or an offense of driving or operating a vehicle while intoxicated, impaired, or under the influence in such other state shall have the same authority to arrest and hold such person in custody as has any member of any duly organized state, county, or municipal peace unit of this state to arrest and hold in custody a person on the ground that he is believed to have committed a felony or an offense of driving or operating a vehicle while intoxicated, impaired, or under the influence in this state.
Ark. Code § 16-81-404