Sometimes criminals can be really dumb. Derbyshire Constabulary (England) offered a case of free beer to those with outstanding warrants/wanted criminals. The individuals were instructed to call a number to arrange delivery of the beer, only to be arrested instead. Brillant.
Police have found this technique to be much cheaper than than the time it takes to track down the criminals the traditional way. It just goes to show you that free beer is still very irresistible. [Time via @markagraves]