up date Chemistry in our life

Chemistry in Our Life

Case study :
a call came in to 101 from a man who found his wife lying on the floor of their home. When the police arrived at the home, they determined that the woman was dead. the husband said he had worked late, and just arrived at their home. the victim’s body was lying on the floor of the living room. There was no blood at the scene, but the police did find a glass on the side table that contained a small amount of liquid. in an adjacent laundry room/garage, the police found a half empty bottle of antifreeze. the bottle, glass, and liquid were bagged and sent to the forensic laboratory.
In another 111 call, a man was found lying on the grass outside his home. Blood was present on his body, and some bullet casings were found on the grass. inside the victim’s home, a weapon was recovered. the bullet casings and the weapon were bagged and sent to the forensic laboratory.

Sarah and mark, forensic scientists, use scientific procedures and chemical tests to examine the evidence from law enforcement agencies. Sarah proceeds to analyze blood,stomach contents, and the unknown liquid from the first victim’s home. She will look for the presence of drugs, poisons, and alcohol. her lab partner mark will analyze the fingerprints on the glass. he will also match the characteristics of the bullet casings to the
weapon that was found at the second crime scene.