Visual identification evidence must be approached with extreme caution and assessed against multiple factors including visibility, lighting, proximity, duration of observation, prior knowledge of the accused, and corroboration. Good identification does not need corroboration, but poor identification does. Identification is poor when it depends solely on a fleeting glance or observation made in difficult conditions, and in such cases corroboration or support is required. Recognition of a known person is generally more reliable than identification of a stranger. Where an accused raises an alibi, the onus to disprove it lies on the prosecution. An identification parade should be held where a witness is not well known to a suspect and the defence is one of alibi. Police irregularities in conducting identification procedures, such as parading suspects before witnesses prior to an identification parade or allowing witnesses to discuss suspects' identities, fatally undermine the reliability of identification evidence.