That doesn't follow. The de minimus non privileged communication would not support a warrant for a wiretap and would poison every case handled by that firm. (P

That doesn't follow. The de minimus non privileged communication would not support a warrant for a wiretap and would poison every case handled by that firm. (Parallel construction would generally not be permitted, as that's usually only allowed for technical or inadvertent procedural defects in gathering evidence, not intentional and unlawful violations.)