Evidence gathering is a crucial aspect of the investigation and legal process to gather data and information to support claims, arguments, or decisions. This is done through various methods such as gathering quantitative and qualitative data, eliciting evidence through activities like questioning and observation, and utilizing tools to collect information. The process of gathering evidence before a trial is known as discovery, where both parties request and exchange information to prepare for the case. Evidence gathering is important as it allows for decisions to be backed up by facts and helps in determining what is effective or not. Ultimately, evidence gathering is vital in building a strong case and ensuring justice is served.