costalgal replied to your post “John, Sherlock, and Forgiveness (spoilers)”

Jon doesn’t trust Sherlock anymore – he insists on a drug screen without even asking what he used.

I don’t think John would ever have trusted Sherlock to answer that question.  Don’t forget that John has long had a fine understanding of the level of bullshit that can come out of Sherlock’s mouth.

Having faith in Sherlock Holmes is one thing.  Buying into the crap he talks is a whole different thing.