"What's wrong? Cat got your tongue?"
Leon tested the range of the effect of the Tongue of Truth, finding most of its influence was blocked. Noticing that the less falsehood in his speech, the less the impact on his tongue, Leon switched to the Performance Master and scolded with a feigned outrage,
"I know you investigators hold a grudge against us at the Virgin Branch, so you love to exaggerate things in your reports. But this time, you've gone too far!
Are you actually trying to frame us for something this big? Do you have any idea what would happen if your framing succeeded? What a massive impact this would have on me and Senior Emma? Where is your conscience? Did a dog eat it?"
"..."
*Heh, maybe my conscience did get eaten by a dog, but a dog's stomach could never handle your thick skin!*