What device did Grayson use to authenticate user access for evidence retrieval?

Grayson used a biometric scanner to authenticate user access for evidence retrieval, which is crucial in forensic investigations. Biometric scanners provide a highly secure method of authentication through unique physical traits such as fingerprints, facial recognition, or iris scans. This form of access control helps ensure that only authorized individuals can retrieve sensitive evidence, thus maintaining the integrity of the data and upholding security protocols in the forensic process.

Using biometric authentication is particularly relevant in digital forensics, where safeguarding evidence is paramount. It adds a layer of protection that traditional password-based systems may lack, as passwords can be shared or guessed, whereas biometric traits are unique to individuals and much harder to replicate. This method fosters a chain of custody by ensuring that only individuals with the correct biometric credentials can access forensic evidence, thereby reinforcing the legal standing of the evidence collected.