Attention
This is a clever sign made by a local police community, again the United States. We wonder how much of your tax money goes towards their sign department because they were definitely being paid well if they came up with this. It’s a funny joke that has a touch of seriousness behind it.
If you were a drug dealer dealing with illegal substances and selling them around town, wouldn’t you want less competition? So rat out all the other dealers you know until you are the only one left standing. It seems logical enough, we wonder why they have not thought of this before.