Profesor Pamela S. Karlan is quoted in an ABA Journal article about her argument in front of the Supreme Court in Herring v. United States:

Pamela S. Karlan argued that police errors should count against police, and that enforcing the exclusionary rule in this case will lead to better-kept police records.

...

Karlan said those problems don’t justify an exception. “There’s not a Barney Fife defense to the violation of the Fourth Amendment,” she said.