Police say they tried to examine Davis' bag near the Merchandise Mart CTA turnstiles shortly before 6PM on January 22. But, Davis refused to to allow the search because "he felt the screening was a violation of his rights," police say.
After police informed Davis that attempting to board after declining the search would result in arrest, they say they cited case law that upheld the constitutionality of such searches. At that point, police say, Davis crossed through the turnstile, apparently intending to board a train.
Davis offered no comment today as the case remains unresolved.
Chicago police began the random screening program four months ago. They say Davis is the only person to be arrested.