Under what circumstance is deadly force permissible to protect property?

Deadly force is never permissible solely for the protection of property under Pennsylvania law. The justification for the use of deadly force is generally limited to situations where there is an imminent threat to a person's life or serious bodily harm, rather than the protection of physical possessions. This principle is rooted in the legal understanding that human life holds greater value than property, and the law does not endorse taking a life over material items. Therefore, while property protection may involve reasonable force, the application of deadly force in such cases is not justified.