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For decades the same test has been used to convict drunk drivers. Police ask a driver to stand on one leg, walk a straight line and recite the alphabet. If the driver fails, the officer will testify in court to help make a case for driving under the influence. But defense lawyers argue, science has yet to prove that flunking the standard field sobriety test actually means that a person is high, the way it's been proven to measure drunkenness. (Smith, 1/25)

Efforts over the years to add PTSD as a qualifying condition for medical marijuana in Colorado have been met with failure. The Colorado Board of Health denied multiple petitions for the inclusion, citing the need for more scientific evidence; bills’ trips through the General Assembly have been short-lived; and veterans and PTSD-sufferers’ legal bids were quashed. (Wallace, 1/25)

In recent weeks, the state Senate and the Florida Department of Health released proposals that would mostly keep control of the marijuana market in the hands of a few companies licensed to grow marijuana, process it and sell oils and pills to patients. Leaders in the Florida House, which have not yet released a plan, say they are inclined to do the same. Instead of creating a whole new marijuana system, the Senate and health department proposed adding new patients to an existing, limited program passed two years ago. It allows terminally ill people to use full-strength marijuana and certain patients, including children with severe epilepsy, to use strains of cannabis low in the chemical THC, which causes a high. (Auslen, 1/25)

As the Florida Legislature begins debating how to make medical marijuana available to patients, Miami Beach commissioners voted Wednesday to extend a moratorium on dispensaries to give city planners time to develop local zoning laws to govern where such businesses can open. (Flechas, 1/25)