Mohinder Singh, AIR 1953 SC 415 was considered by a Co-ordinate Bench of this Court in Gurucharan Singh, (1963) 3 SCR 585. The evidence of a ballistics expert would assume significance where direct evidence is not satisfactory, or is of interested witnesses or where the nature of the injuries requires expert corroboration. In other words, whether the examination of a ballistics expert is necessary is dependent upon the factual context as it emerges in each case. There is no inflexible rule which requires a ballistics examiner in every case where a murder is alleged to have been caused with the use of a fire arm.
– Hon’ble Justice Dr. D.Y. Chandrachud, Rajesh v. State of Haryana, [Criminal Appeal No. 1648 of 2019].