Kerr was one of the lawyers for alleged MySpace "cyberbully" Lori Drew.[8] His blog contributions at The Volokh Conspiracy often focus on developments in internet privacy law. He has been regarded as a leading scholar on Fourth Amendment jurisprudence in electronic communications and surveillance. Kerr was repeatedly cited in the Ninth Circuit's 2008 opinion Quon v. Arch Wireless Operating Co., Inc.,[9][10] which held that users have a reasonable expectation of privacy in the content of text messages and e-mails.