Reducing Illegal Employment through the Use of Biometrics: Options and Recommendations (pdf hosted at Bio-Key.com)
This white paper, detailing how to tighten up compliance with employment laws, has broad applicability to any decision on the adoption of biometric identity management technologies and we recommend it highly.
This is how it's done. There's a discussion of the status quo and why it is inadequate; there's a discussion of cost; and there's a discussion of differing modalities.
Some notes on Mr. Bush:
Retired from the FBI in 2009 after over 33 years of service.
Assistant Director of the FBI's Criminal Justice Information Services Division (CJIS). Initiatives included the Integrated Automated Fingerprint Identification System (IAFIS), the largest criminal biometric database in the world.
Following his retirement, he established a consulting business, Tom Bush Consulting, LLC. He currently serves as a Strategic Advisor for BIO-key International, Inc.