Pramod Mandal Vs State of Bihar (2004) 13 SCC 150

Hon’ble Supreme Court of India observed as under "It is neither possible nor prudent to lay down any invariable rule as to the period within which a test identification parade must be held, or the number of witnesses who must correctly identify the accused, to sustain his conviction. These matters must be left to the courts of fact to decide in the facts and circumstances of each case. If a rule is laid down prescribing a period within which the test identification parade must be held, it would only benefit the professional criminals in whose cases the arrests are delayed as the police have no clear clue about their identity, they being persons unknown to the victims. They, therefore, have only to avoid their arrest for the prescribed period to avoid conviction. Similarly, there may be offences which by their very nature may be witnessed by a single witness, such as rape. The offender may be unknown to the victim and the case depends solely on the identification by the victim, who is otherwise found to be truthful and reliable. What justification can be pleaded to contend that such cases must necessarily result in acquittal because of there being only one identifying witness? Prudence therefore demands that these matters must be left to the wisdom of the courts of fact which must consider all aspects of the matter in the light of the evidence on record before pronouncing upon the acceptability or rejection of such identification.