What is one of the key responsibilities during a DUI checkpoint?

One of the key responsibilities during a DUI checkpoint is ensuring clear signage for drivers. This is essential because clear signage informs approaching motorists about the checkpoint's presence and purpose. It helps to guide vehicles safely into the checkpoint and allows drivers to understand what to expect. Proper signage also enhances safety for both the officers working the checkpoint and the motorists, providing advance notice to slow down and prepare to stop.

Having clear signage can lead to a more organized and efficient operation, potentially decreasing traffic congestion and confusion. It also plays a crucial role in promoting compliance with the law, as drivers are made aware of the checkpoint's objectives regarding DUI enforcement.

The other choices focus on aspects that are either impractical or not aligned with the objectives of conducting a safe and effective DUI checkpoint.