Law enforcement vessels typically display which type of flashing light?

Law enforcement vessels usually display a blue flashing light to indicate their presence and authority on the water. This visual signal is part of the standardized color-coding system on vessels, where blue lights are specifically associated with law enforcement and emergency services. The use of blue lights helps to distinguish these vessels from others that may use different colors for their own specific purposes, enhancing safety and compliance on the water.

While other colors like red and yellow may also have specific meanings in maritime contexts (such as indicating a vessel at anchor or warning of hazards), the blue light is predominantly recognized as a signal for law enforcement, making it clear to other boaters and personnel that they are dealing with an official law enforcement presence.