Final answer:
Legal failing occurs when there is a failure to apply the law correctly, which can result in an injustice when relevant factors are not considered or individuals are not treated fairly.
Step-by-step explanation:
Legal failing occurs when there is a failure to apply the law correctly. This can result in an injustice when the legal system fails to consider relevant factors or treat individuals fairly. For example, if a law treats a four-year-old who steals a candy bar the same as a young adult who commits a serious crime, it may be considered unfair and unjust. Similarly, if a law discriminates against certain groups of people based on race or gender, it can be seen as a legal failing and an injustice.