Due diligence is the comprehensive investigation and evaluation conducted before entering into a significant transaction or agreement. In business and government contexts, this means thoroughly researching and verifying all relevant information before making decisions. Examples include: municipalities conducting environmental assessments before purchasing land, reviewing contractor qualifications before awarding contracts, or analyzing financial projections before approving development. Due diligence protects organizations from hidden problems, undisclosed liabilities, or misrepresentations. The process may involve reviewing documents, conducting site inspections, verifying credentials, obtaining professional opinions, and assessing risks. Failure to conduct adequate due diligence can result in costly mistakes, legal liability, or public criticism. The standard of due diligence expected varies based on transaction size, complexity, and potential consequences.