1. The document discusses different biometric identification methods including iris scanning, fingerprint analysis, and DNA testing. 2. Iris scanning involves using mathematical pattern recognition techniques to analyze unique patterns in a person's irises. Over 250 points are scanned in iris recognition compared to only 30 points for fingerprint analysis. 3. Iris scanning has been implemented for security purposes in border control systems, ATMs, airports, and smartphones. It provides a contactless way to identify individuals.