It says nothing about disabling anyone’s defenses against Dementors; it is a fait accompli, where Harry simply states that anti-dementor spells now exist and are being actively deployed. The Wizengamot can disable him if they want, but it will not change the situation (unless they know Harry is bluffing.)
And why disable one of the few wizards who -can- actually combat the dementors? The only reason the ministry used them in the first place was because there was no way to destroy them.
Actually, that’s not the only(or even best) solution.
It’s pointed out in a previous chapter that intimate knowledge of such spells disables the regular patronus. Which is Harry’s only weapon at this point—that threat. He can’t say “I can kill dementors” without making the threat because he’ll become an obvious man behind the break-in. What will he do, threaten to destroy them? They’ll just send his ass to jail. No, he needs some kind of threat to the wizengamot, which in this case would be to ruin their Patronus spell. However, that still won’t work because D knows what Harry can do and can likely stop him before he fully explains the his theory, and if that he fails at that, it’ll be a pretty simple task to kill/disable him and then Obliviate the various wizards present.
It says nothing about disabling anyone’s defenses against Dementors; it is a fait accompli, where Harry simply states that anti-dementor spells now exist and are being actively deployed. The Wizengamot can disable him if they want, but it will not change the situation (unless they know Harry is bluffing.)
And why disable one of the few wizards who -can- actually combat the dementors? The only reason the ministry used them in the first place was because there was no way to destroy them.
Actually, that’s not the only(or even best) solution.
It’s pointed out in a previous chapter that intimate knowledge of such spells disables the regular patronus. Which is Harry’s only weapon at this point—that threat. He can’t say “I can kill dementors” without making the threat because he’ll become an obvious man behind the break-in. What will he do, threaten to destroy them? They’ll just send his ass to jail. No, he needs some kind of threat to the wizengamot, which in this case would be to ruin their Patronus spell. However, that still won’t work because D knows what Harry can do and can likely stop him before he fully explains the his theory, and if that he fails at that, it’ll be a pretty simple task to kill/disable him and then Obliviate the various wizards present.