Importance of dna profiling and botanical examination to fix the offence and offence place

In sexual offences, specifically semen on victim’s clothes or medical samples proves involvement of accused in the crime. But in some cases when semen stains are not detected during investigation, the victim’s blood or body fluid on the accused’s garments as well as grass or earth from the crime scene adhered to clothes helps to prove the crime. If the blood detected is in very less quantity then it is difficult to prove the evidence by routine ABO grouping. Further, discrimination power of ABO Blood group system is less. Here, DNA profiling technique has created wonders from the time it has been invented. In the present case, a girl aged 7, while going to home from school was abducted by accused on his motorcycle and took her to channel and raped her. Later, as she started crying, he beaten her on stomach to make her quiet and dropped her near home. Her mother lodged complaint to police station. During forensic analysis, DNA profile obtained from few blood stains on shirt of accused matched with DNA profile of victim and grass collected from leggings of victim and jeans full pant of accused after grass comparison proved that both the grass samples belong to same species. Thus, both DNA technique and botanical examination of grass proved the involvement of accused in the crime and fixed the offence place.