The Law Offices Of Charles J. Piven, P.A. has announced that it is conducting an ongoing investigation, along with another law firm, of Guess? for possible violations of the civil enforcement provisions of federal securities laws since May 1, 2000. The Law Offices of Charles J. Piven has not decided whether to pursue legal prosecution and, when reached by telephone from just-style.com, Piven declined to comment for the record.