A more thorough explanation:

Definition: Mutilation is the act of damaging or removing an essential part of something or someone.

There are two main types of mutilation:

1. Legal Mutilation: This is when a document is made invalid by removing or altering an important part of it, such as a signature or date. This is usually done with the intention of deceiving someone or gaining an unfair advantage.
2. Criminal Mutilation: This is when a person intentionally cuts off or permanently damages an essential body part of another person. This is a serious crime and is also known as mayhem.

Examples:

• Legal Mutilation: If someone alters a contract by changing the terms without the other party's knowledge or consent, they have committed legal mutilation.
• Criminal Mutilation: If someone cuts off another person's finger or ear, they have committed criminal mutilation.

These examples illustrate how mutilation involves damaging or removing an essential part of something or someone. In the case of legal mutilation, the essential part is a key element of a document that makes it legally binding. In the case of criminal mutilation, the essential part is a body part that is necessary for the person's well-being and quality of life.