What document is commonly used to establish a person's identity?

The passport or driver’s license is commonly used to establish a person's identity because these documents are issued by government agencies and typically include important identifying information such as the individual's name, photograph, date of birth, and signature. They are widely recognized as valid forms of identification both in everyday transactions and in legal situations, making them reliable for verifying a person's identity.

While other documents, such as utility bills, employee ID badges, and bank statements, can provide supporting information about a person's identity or residency, they do not carry the same level of authority or standardization as government-issued identification. Utility bills and bank statements can demonstrate an address, but they may not clearly verify an individual's identity on their own. An employee ID badge is specific to a particular organization and may not be universally accepted for identity verification since it does not necessarily include detailed personal information like a government-issued ID. Thus, the passport or driver's license stands out as the most established means for confirming identity.