“Only 1.5 of every 10 individuals charged with drug trafficking and murder in Mexico ends with a sentence, while the remaining of the 85% go free for lack of evidence even if the PAN government brags about their arrests in the media.
It is a ritual that takes place almost every day: people accused of drug trafficking and murder are paraded before the media to show that Mexico is winning its war against drugs.
But once the camera lights go out, three-quarters of them are released.”
http://www.borderlandbeat.com/2010/07/85-of-drug-traffickers-are-set-free.html