There's no way those lorries can verify the adblue tank is full of adblue and not just water. So it's not really going to stop trucks from operating is it.
Oh, they can. There is a "quality sensor" in the DEF tank, and the ECU is required to "derate" the engine if that sensor isn't happy. Which in practice means go into limp mode.
These can be bypassed trivially, it's a Google search away.
Maybe tank itselft not but exhaust composition via NOx lambda probe? Yes, it can stop a truck.