There has been a heroin drought in the UK (and elsewhere) since last November, as any heroin users and drugs workers will already know.

There are many related risks to this, not least of which is what happens when the purer heroin returns (which some areas are already saying is starting to happen). I've made a poster an leaflet highlighting some of these issues. You are (as always on this site) free to download and use these as you see fit.