What is the first step when lowering a victim from a structure using a pole without cross-arm?

Using a screwdriver as support for the handline is the correct first step when lowering a victim from a structure using a pole without a cross-arm. This method provides essential stability and support for the handline, ensuring that the load is managed safely and effectively as the victim is being lowered. The use of a tool like a screwdriver helps to anchor the line, preventing slipping or sudden drops that could occur if the line were unsupported.

This step is crucial for maintaining control of the descent, allowing for a more controlled and safer process. Supporting the handline enhances the safety of both the rescuer and the victim during the operation.

Other options do not provide a practical or safe approach: simply applying force without proper support can lead to accidents, lowering a victim without any support is unsafe, and informing the victim is important for communication but does not address the immediate need for stability during the lowering process.