What are proper hand signals for a traffic stop?

The proper hand signal for directing a driver to stop is a raised hand with the palm facing the driver. This signal clearly communicates the intent for the driver to halt their vehicle, providing an immediate and recognizable gesture. It is essential for ensuring the safety of both the officer and the motorists, as it establishes a clear visual indicator of the officer's instructions.

In contrast, other choices, such as a single finger pointed upward, are ambiguous and not universally understood as a signal to stop. Waving both arms in a circular motion may create confusion or be interpreted as a signal to proceed, rather than indicating a need to stop. Using two hands to indicate stopping could be misinterpreted depending on the context and might not be as effective as the simple raised hand signal. Therefore, the raised hand with palm facing the driver serves as the most effective and standardized method for signaling a traffic stop.