Legal defense refers to the strategies and arguments used by a lawyer to protect a client accused of a crime or involved in a legal dispute. The goal is to ensure that the client's rights are upheld and to achieve the best possible outcome, whether that means winning a case, reducing penalties, or negotiating a settlement. In criminal cases, a legal defense can include various approaches, such as proving innocence, demonstrating lack of intent, or highlighting procedural errors. Common types of defenses include self-defense, insanity defense, and alibi. Each case is unique, requiring tailored strategies based on the specific circumstances involved.