Once the poppy heads are taken and dried the seed pods inside are processed and turned into morphine and codeine.
The process requires a degree of expertise which is why growers are confident the flowers will not be stolen by drug dealers looking to turn them into heroin.
http://www.dailymail.co.uk/news/art...ning-field-opium-poppies-actually-DORSET.html
Confident they wont be stolen by drug dealers looking to turn them into heroin... what about drug users stealing them to make a nice pot of tea?
