This is an excellent resource for those who are learning counselling or dealing with drug and alcohol issues.
I used this document for my Professional Skills: Counseling assignment and found this Drug and Alcohol Office document very easy to read and certainly useful. Even if you are not a student or professional, it makes for interesting reading!
A Police Complaints Authority Study (UK): May 2003. It is a review of 43 deaths in police care or custody between 1997 and 2002 in which the consumption of illicit or prescribed drugs was given as the cause of death at either the post-mortem or at the coroner's inquest, or where the police investigation indicated that the individual had consumed illicit drugs in the period immediately prior to their arrest or death.
The drug most commonly consumed was cocaine, followed by cannabis. Surprisingly, the most common route of administration was oral with only five individuals having injected the drugs used intravenously.