A mug file is typically a compilation of criminal records that contain photographs, personal information, and other data. However, there are several synonyms for the term that can be used interchangeably such as "booking photo," "mugshot," or "police photo." These terms refer to the same type of criminal record, which is often taken at the time of arrest or booking. Other related terms include "rap sheet," which is a summary of all previous criminal activity, and "criminal history record," which is a complete record of all criminal and non-criminal history, including fingerprints. All of these terms are commonly used in law enforcement and criminal justice contexts to refer to the same type of documentation.