A more thorough explanation:

The Law of Arms refers to a set of rules and regulations that govern various aspects related to arms, including the right to bear arms, treatment of prisoners during war, and the use of armorial bearings.

• Treatment of prisoners: The Law of Arms includes rules that dictate how prisoners of war should be treated. For example, they should not be subjected to torture or inhumane treatment.
• Right to bear arms: The Law of Arms also covers the right to bear arms. This includes regulations related to the possession, use, and sale of firearms.
• Armorials: The Law of Arms also governs the use of armorial bearings, such as coats of arms. In some countries, these are granted by specific officers, such as the College of Heralds in England or the Lord Lyon King of Arms in Scotland.

These examples illustrate how the Law of Arms covers a wide range of topics related to arms, including both military and civilian aspects. By regulating the use of arms, the Law of Arms aims to promote safety, fairness, and order in society.