Crime scene investigators may be called to the crime scene in order to secure it, take precise measurements and detailed descriptions of the scene, collect evidence that they can find within the scene or around and package them so they can be tested in a lab. They collect important physical evidence that they can find like fingerprints, footprints, and trace materials, any hair that hadn’t been burnt and fibre from the clothes of the women or on the car seats. (Lynch & Cole 2008)
Fingerprinting relies on unique patterns of loops and archers that differentiates a person from another, as an individual’s fingerprint is unique. In a crime scene investigation, forensics rely on two forms of finger print identification. There are visible prints that could be recognised on any type of surface that could create a form of impression such as blood or dirt, whereby the finger prints onto it (Lynch & Cole 2008). Furthermore, there are latent prints which are created when a natural substance from the skin like sweat or oil is produced and a fingerprint is left on the glass, weapon or any other surface that the suspect had touched. Furthermore, these certain finger prints could not be identified or seen with …show more content…
A forensic expert will need a sample in order to examine whether there is semen contaminated by using the acid phosphatase enzyme method. (Mcewen & Regoeczi 2015). In order for a forensic expert to confirm the results, they would need to analyse the bodily fluids sample under a microscope. Phenolphthalein is used to test blood, it is a colourless substance which shows whether blood is present, and luminal is another test used by forensics as it is able to detect even the smallest drops of blood. The phadebas amylase test is used to detect the presence of saliva, as it has the ability to detect an enzyme in human
Fingerprinting relies on unique patterns of loops and archers that differentiates a person from another, as an individual’s fingerprint is unique. In a crime scene investigation, forensics rely on two forms of finger print identification. There are visible prints that could be recognised on any type of surface that could create a form of impression such as blood or dirt, whereby the finger prints onto it (Lynch & Cole 2008). Furthermore, there are latent prints which are created when a natural substance from the skin like sweat or oil is produced and a fingerprint is left on the glass, weapon or any other surface that the suspect had touched. Furthermore, these certain finger prints could not be identified or seen with …show more content…
A forensic expert will need a sample in order to examine whether there is semen contaminated by using the acid phosphatase enzyme method. (Mcewen & Regoeczi 2015). In order for a forensic expert to confirm the results, they would need to analyse the bodily fluids sample under a microscope. Phenolphthalein is used to test blood, it is a colourless substance which shows whether blood is present, and luminal is another test used by forensics as it is able to detect even the smallest drops of blood. The phadebas amylase test is used to detect the presence of saliva, as it has the ability to detect an enzyme in human