A new claim in a former hotel maid’s civil suit against Dominique Strauss-Kahn based on what his lawyers say is “an obscure, never-before-interpreted New York City law” should be dismissed as unconstitutionally vague, they argue in court papers.

Nafissatou Diallo, who claims Strauss-Kahn sexually assaulted her in a midtown Manhattan hotel in May 2011, filed civil charges in Bronx Supreme Court last August in Diallo v. Strauss-Kahn, 3070655/2011. The Manhattan District Attorney’s Office chose not to prosecute.