When arresting a person without a warrant, the officer must inform him of his authority and the cause of the arrest, except when he is in actual commission of a public offense, or is pursued immediately after an escape. R.L.1910, § 5657.
Authority must be stated on arrest without warrant, when
22 O.S. § 199 — under Title 22 — Criminal Procedure.
22 O.S. § 199