The driver of any motor vehicle which has been checked by radar or by any electrical or mechanical timing device to determine the speed of the motor vehicle over a measured distance of the highway and which has been found to be in violation of any of the provisions of this Traffic Code may be arrested until a warrant can be obtained, provided the officer has observed the recording of the speed of such motor vehicle by radio microwaves or an electrical or mechanical timing device or has received a radio message from the officer who observed the speed of the motor vehicle recorded by radio microwaves or an electrical or mechanical timing device; provided, in case of an arrest based on such a message, the radio message has been dispatched immediately after the speed of the motor vehicle was recorded and the arresting officer is furnished a description of the motor vehicle for proper identification and the recorded speed. (ORC 4511.091)