When you are buying cocaine by the boatload, you want to have some assurances that the product is of high quality.
So foreign drug dealers have gotten in the habit of impressing a trademark into cocaine packages.
For six years, investigators have been keeping track.
The impressions can be anything from a simple letter to images of animals, vehicles, Roman letters, stars and figures from the comics.
The Judicial Investigating Organization unveiled a catalogue Thursday that contains six years worth of drug trademarks. Officials said the catalogue will be helpful in further investigations.