Lawyers representing the committee of the New Jersey Legislature investigating last September’s closure of local access lanes to the George Washington Bridge were to spend Tuesday huddling with lawyers for AT&T to discuss whether the telecommunications company would comply with the committee’s request for cellphone records of Regina Egea, the chief of the Authorities Unit in the administration of Gov. Chris Christie.

But attorneys outside the matter who are familiar with how telecommunications companies operate questioned the enforceability of the subpoena, given that the committee is not a law enforcement agency.