Md. Code Ann., Cts. & Jud. Proc. § 10-301
The speed of a motor vehicle may be proved by evidence of a test made upon it with a device designed to measure and indicate the speed of a moving object by means of radio-micro waves.
Added by Acts 1973, 1st Sp. Sess., c. 2, § 1, eff. Jan. 1, 1974. Amended by Acts 1983, c. 307.
Formerly Art. 35, § 91.