As the first in a series of fortnightly interviews highlighting road and driver safety coming into the holiday period, Susannah Guthrie sits down with Victorian Road Policing Assistant Commissioner Glenn Weir. They discuss which dangerous driving habits remain puzzlingly common, the true cost of 'little infringements', the latest deterrents and enforcement strategies and what is really needed to reduce the road toll.  See omnystudio.com/listener for privacy information.