Motor Vehicles - Police Stops - Secondary Enforcement and Excludable Evidence

Requiring a police officer to document all reasons for a traffic stop or other stop on a citation or police report resulting from the stop; establishing that certain evidence obtained from a traffic stop or other stop in violation of certain provisions of law may be excluded as evidence in certain proceedings; authorizing a police officer to enforce certain provisions of the Maryland Vehicle Law only as a secondary action; and applying certain provisions of the Act retroactively.