Ok, so DUI roadblocks (aka "sobriety checkpoints") are a violation of the 4th Amendment.  But the Supreme Court found a "DUI exception", ruling that although it is a violation of our rights, it is only a "minor intrusion" which is "outweighed" by government’s interest in identifying and arresting dangerous drivers.  Sitz v. Michigan.  But since then it has [...]

Read the complete post at http://www.duiblog.com/2008/08/01/dui-logic-roadblocks-effective-because-theyre-ineffective/