Singapore's Personal Data Protection Commission (PDPC) has issued guidelines on 'responsible use of biometric data in security applications'. The guide explores issues that should be considered when implementing security cameras and biometric recognition systems, and includes industry best practices for data protection. It also explains the obligations of owners of such systems under the country's Personal Data Protection Act and gives practical examples on the law on security cameras for security monitoring and biometric recognition for access control. The guide supplements an earlier one on 'Key Concepts in the Personal Data Protection Act ' which contains a section on CCTVs.