The writing in this piece is horrible.

"Free parties were popping up all over the country, and there were many in Bristol. That's when ketamine came flooding into the city."

Differentiation? Anybody? As far as I am concerned these so called "Free parties", aka outdoor raves, exist in most places of the world, as they cater for a basic human need to have a good time. Now when people enjoy themselves, they tend to drink, smoke and use various consumerables. We know Ketamine is big in the UK. Now how are non commercial social events connected to Ketamine?