The keyboard player, 35, was detained by police for possession of the drug in Glasgow, Scotland on 24 June last year (06).
Simpson had been due to appear at Glasgow Sheriff Court this week (ends28Sep07), but the Crown Prosecution Office has decided not to pursue the matter any further - more on this story
Click here to read today's full report
Preview and Purchase Snow Patrol music
Kandace Springs - Run Your Race
On the Blue: New Horizons Cruise Day 1: Marbin Gets the Fun Started
Hot In The City: Prog Band Tu-Ner Coming to Phoenix
Slipknot To Play Rare Intimate Venue Show This Week
Deep Purple Announce New Album '=1'
Howard Jones, ABC And Haircut 100 Taking Fans Back To The 80s This Summer
Veil Of Maya and Brand Of Sacrifice Lead Summer Slaughter Lineup
Watch Sebastian Bach's '(Hold On) To The Dream' Video
Kittie To Rock North American Headline Dates
Billy Corgan's Adventures in Carnyland TV Series Premiere Announced
GHOSTxSHIP Releasing First New Music in 10 Years