In a live lineup identification procedure, the minimum number of fillers is crucial to ensure a fair and unbiased identification process. A lineup typically consists of the suspect and several fillers, who are individuals that resemble the suspect but are not the ones being accused. This helps to prevent misidentification and reduces the pressure on witnesses.
The correct answer specifies that at least four fillers are required. This number is significant because it creates a more balanced lineup, making it less likely that a witness will identify the suspect simply because they stand out. If the lineup includes only a small number of fillers, such as one or two, the suspect can easily be more prominent, leading witnesses to make a misidentification based on appearance rather than actual memory of the crime.
Overall, utilizing a minimum of four fillers helps to uphold the integrity of the identification process, promotes fair trial standards, and preserves the rights of the accused.