The final line of former U.S. Deputy Attorney General Paul McNulty’s pitch to potential clients says it all: “Don’t wait until it’s too late.”

McNulty, while at Main Justice, wrote a memo that corporations still use to help them determine how to respond to allegations of criminal wrongdoing. Since arriving in private practice in 2007, McNulty has shaped a practice at Baker & McKenzie advising corporations on what they should do before any such allegations even surface.