types of biometrics

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You have learned that the oldest and most reliable type of biometrics is the fingerprint; however, other biometrics are being used alone or in conjunction with fingerprints in in criminal investigations.

Respond to the following:

• Identify and explain 2 other forms of biometrics.
• How they are helping identify suspects in criminal investigations?
• What are some of the limitations or challenges of your chosen biometrics related to criminal investigations?