The Metropolitan Transportation Authority is asking a judge to disqualify and sanction an attorney representing a woman who lost two limbs after she was hit by a subway train, arguing that the attorney broke ethics rules when he confronted an MTA official in a town hall meeting.

The MTA claims that David Roth of Roth & Roth, who represents Luisa Harger da Silva in her personal injury suit against the authority, broke the “no contact” rule when he engaged New York City Transit Authority president Andy Byford about safety improvements to subway platforms on Aug. 21 at a public meeting regarding the authority’s Fast Forward Plan and that he engaged in fraudulent conduct by not identifying himself as Harger da Silva’s lawyer.