A system and method of obtaining and storing a signed agreement authorizing the use of a user's biometric data for the purpose of offering legal consent to agreements and transactions with one or more operators. The present invention imparts a process by which merchants and other service providers can access a verifying agreement indicating a user's intent to submit biometric data as a substitute for a written signature and the user's consent to abide by the terms and conditions of any agreements entered into by the submission of biometric data.