There can be no "thoughtcrimes" except perhaps in some kind of dystopia.
Morality governs the interactive behaviour of humans, not their thoughts, in and of themselves.
What are your innocent thoughts on this?
It's an interesting question.
These are my initial thoughts
God doesn't have a human form, He's a spiritual being.
[But is He only in spiritual form or is that the Holy Spirit part of Him (?)]
So, to only count crimes made in the physical human form we have could be to ignore all sins that count to Him.
Also, if I'm thinking about eating the rest of yesterday's cake, for example, I'm more likely to eat that cake later then if I hadn't remembered it. Or if when I remembered, it I had decided to not think about it.
So perhaps what Jesus was saying, in Dive's post, was more about the decision to exercise your mind. When I taught my son to ice skate I told him to look where he wanted to go. Not at the floor, if he didn't want to fall.