Final answer:
The statement is false. Crime scene sketches should include all relevant elements, including furniture.
Step-by-step explanation:
The statement that a detailed sketch of a residential crime scene needs to show the furniture only when the crime involves upsetting the furniture is false.
In a crime scene sketch, it is important to depict all the relevant elements, including furniture, regardless of whether or not the furniture was disturbed during the crime.
Crime scene sketches provide a visual representation of the crime scene and help investigators analyze the placement of items, bloodstains, and other evidence, which can be crucial in solving the crime.