Common Methods of Identifying a Suspect Most law enforcement agencies continue to use “line-ups” for witness identification. Some consider this the most reliable method of suspect identification available to them, and reserve these procedures for their most serious cases. The process takes time and effort, after all. Police officers must gather “fillers”, who are the additional people standing in the line-up when a witness attempts to identify a suspect. Often, and surprisingly even in very serious cases, police will simply print […]