In which scenario can ECD not be used according to policies?

The use of an Electronic Control Device (ECD) is carefully regulated within law enforcement policies due to the risks associated with deploying such devices. In the scenario where a suspect is armed and refuses to drop a weapon, using an ECD can escalate the situation and potentially lead to disastrous outcomes for both the officers and the public. This policy is in place because using an ECD on someone holding a weapon may provoke a violent response or distract the individual in a way that could result in the use of that weapon, causing injury or death.

In contrast, the other scenarios provided do not carry the same level of risk for immediate lethal outcomes. For instance, actively resisting arrest can warrant the use of an ECD as a means to gain compliance when physical force is deemed necessary. Similarly, fleeing the scene may also justify deployment if the situation allows for it, and while it is generally advisable to be cautious regarding minors, policies can vary on using ECDs on individuals under age 12 based on their level of threat to officers or others.

Thus, the prohibition against using an ECD when a suspect is armed and non-compliant is rooted in the necessity to preserve life and ensure the safety of both the officers involved and the community at large.