[It's nothing against Blackarachnia, Blurr is generally paranoid since Shockwave happened. He can't help it.]

Someone from the Police Force needs to be there when that happens, you shouldn't talk to him alone. [Blurr wants to say 'you can't', but that would sound like an order and he rather has Blackarachnia helping them than refuse to offer any help because of that. And there's also his other reason:]It could be dangerous. What if he did it and he tries to kill you too?