  So understood, (PI) allocates the burden of proof in criminal trials to those on the accusing side. Many add that \(D\)’s accusers must meet an especially high standard of proof—they must eliminate all reasonable doubt to secure a conviction. Though these points are widely accepted, they leave open a range of further questions about the scope and basis of (PI). The following remarks touch on just some (for an overview, see Lippke 2016).