From WPVI TV
The police have eight breathalyzer machines and have discovered that five of them were not calibrated correctly, giving false readings.
1,147 cases were affected between September, 2009 and November, 2010. The issue came to light when defense attorney Charles Peruto raised an objection in court to a questionable breathalyzer result. He predicts there may be as many as 5,000 tainted cases and most of those defendants will walk. ….MORE