Florida Court Orders Disclosure of Breathalyzer Source Code:

Declan McCullagh (news.com) reports on this decision by a three-trial-judge panel in Florida. Note that the decision relies heavily on Florida statutes -- it's not clear whether courts in other states would take the same view, though one can certainly argue for the same result using a more general right-to-discovery-of-relevant-evidence argument that isn't limited to Florida law.