Exhibit 31 CERTIFICATION Re: Morgan Stanley ABS Capital I Inc. Trust 2003-HE1 (the "Trust"), Mortgage Pass-Through Certificates, Series 2003-HE1, issued pursuant to the Pooling and Servicing Agreement, dated as of June 1, 2003 (the "Pooling and...Pooling and Servicing Agreement • March 30th, 2004 • Morgan Stanley Abs Capital I - Mor Pas THR Cert Ser 2003-He1 • Asset-backed securities
