Evidence of speed based on a speed detection device using the speed timing principle of laser which is of a model that has been approved by the Department of Public Safety shall be considered scientifically acceptable and reliable as a speed detection device and shall be admissible for all purposes in any court, judicial, or administrative proceedings in this state. A certified copy of the Department of Public Safety list of approved models of such laser devices shall be self-authenticating and shall be admissible for all purposes in any court, judicial, or administrative proceedings in this state.