What is real, or physical, evidence? Describe. ?Provide 3 examples of a piece of real evidence. ?What is the importance of physical or real evidence to the investigation? Explain. ?What are two methods of demonstrative evidence used to clarify the issues surrounding actions or lack of actions at a crime scene for a judge or jury? Explain. ?How would they help the triers of fact to better understand the evidence? Explain. ?What is the difference between direct evidence and circumstantial evidence? Explain. ?What is the concept of overwhelming circumstantial evidence? Explain. ?Can it be enough for a conviction? Why or why not?