Forensic scientist on how street drugs are cut
Police are warning drug dealers are increasingly using a "lethal cocktail" of "dangerous" and "unpredictable" substances to bulk out recreational drugs.
A BBC Radio 5 live Breakfast investigation has found that some drug dealers are using cutting agents such as horse tranquillizer, rat poison and even cut glass to maximize profits.
Dean Ames is a leading drug specialist at the Forensic Science Service.
Here he explains what common street drugs like ecstasy and cocaine are cut with, by both suppliers and dealers.
07 Sep 2010