Step-by-step explanation:
"Fruit of the poisonous tree" is a legal term that refers to evidence that is obtained illegally or unlawfully. This principle holds that evidence obtained as a result of an unlawful or unconstitutional search, seizure, or interrogation is tainted and therefore inadmissible in court. The term is derived from the idea that evidence obtained from an illegal source is like a poisonous tree, where everything that grows from it is tainted and cannot be used.
Locard's Exchange Principle is a forensic principle that states that every contact leaves a trace. This principle was formulated by Dr. Edmond Locard, a French forensic scientist, in the early 20th century. According to the principle, whenever two objects come into contact with each other, there will be a transfer of materials between them. This transfer can include physical, biological, and chemical materials, such as fibers, hairs, DNA, and fingerprints. The principle is used in criminal investigations to link suspects to crime scenes, and to link objects found at the crime scene to suspects. By analyzing the materials exchanged during a contact, forensic scientists can establish a link between a suspect and a crime scene or victim.