For something to count as a criminal attempt, there must be a danger that the crime will be completed.

"That's what this court case is about. If they committed an attempted weapons offense.

She explains that there may be a plan at the core, but that you can have little "bad luck" as a criminal.

"For example, I can plan to break into the museum in Umeå to steal a very famous and expensive painting. But before I can strike, this board is moved. Basically, I had a good plan, but now I was a bit unlucky.

And a bad crime plan is exactly what the current HD case is about, says Ann Lundgren.

"It was not possible to retrieve the weapons, because there were no weapons. And the Supreme Court concluded that it was a bad crime plan. Even when they came up with it, it was not possible to take any weapons.