Conversation so far:
Did Andrew Johns ever possess ecstasy?
On 26 August 2007 Johns was arrested for fare evasion on the London Underground, and subsequently found to be in possession of one ecstasy tablet
Was Andrew Johns arrested on possession of ecstasy?
Andrew Johns was cautioned and released with no further charges.

Question: Did he regularly take ecstacy?
Self-contained rewrite: Did Andrew Johns regularly take ecstacy?