William J. Brennan, Jr., Bantam Books, Inc. v. Sullivan…
“ We do not hold that law enforcement officers must renounce all informal contacts with persons suspected of violating valid laws prohibiting obscenity. Where such consultation is genuinely undertaken with the purpose of aiding the distributor to comply with such laws and avoid prosecution under them, it need not retard the full enjoyment of First Amendment freedoms. But that is not this case. The appellees are not law enforcement officers; they do not pretend that they are qualified to give or that they attempt to give distributors only fair legal advice. ”
