In which scenario can deadly physical force be justified?

The justification for using deadly physical force is grounded in the principle of self-defense or the defense of others when faced with an imminent threat of serious bodily harm or death. In scenarios involving murder, robbery, and aggravated assault, there is a clear and present danger that could justify the use of deadly physical force.

In the case of murder, the immediate threat to an individual's life creates a situation where deadly force may be seen as necessary to prevent the loss of life. Similarly, when someone engages in robbery or aggravated assault, the potential for severe injury or fatalities is significant. In these instances, the use of deadly force is considered a last resort to avert an unavoidable threat.

In contrast, the other scenarios do not typically meet the necessary criteria for justifying deadly physical force. Theft prevention, public demonstrations, and enforcement of minor violations involve situations where the threat level does not escalate to the point of justifying lethal action. Thus, option B accurately reflects the circumstances under which deadly physical force can be considered justified.