What type of hook latch must be used when lifting personnel?

When lifting personnel with a crane, it is crucial to ensure a safe and secure method of attachment between the lifting device and the personnel platform. A latch that can be closed and locked provides the necessary safety measure to prevent accidental disconnection during the lift. This locked latch prevents the hook from inadvertently releasing the load, which is essential for personnel safety.

Using a latch that can be securely locked ensures compliance with safety regulations and best practices for personnel lifting operations, minimizing the risk of accidents. In contrast, other options such as a standard hook latch or a swivel hook with no latch do not offer the same level of security, leading to potential safety hazards. A magnetic hook latch, while innovative, does not provide the necessary mechanical closure and security needed for safely lifting personnel, making a locked latch the optimal choice for this purpose.