Born-Digital or AnalogAnalogTranscriptLaws. Colorado. Implied consent Denver district court rules law is unconstitutional. Post 0 15, 1973 p.1 RMN 0 16, 1973 p.5 Colorado Supreme Court rejects challenges to law. Post F 11, 1.974 p.2 Colorado Supreme Court upholds law. RMN Ap 30, 1974 p.18 State Highway Safety Division proposes of voluntary" system of curbside breath testing; legislature tables proposal pending more information. RMN N 19, 1974 p.5CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng