Answer :
Answer:
Because the expectations or demands of a CSI-style jury are unrealistic.
Explanation:
The key reason behind real-life crime labs not always being able to generate the results demanded by a CSI-style jury is that 'their expectations are unrealistic and based on television shows featuring crime scene or forensic science. Such shows portray forensic science and its developments on an exaggerated level and affect public opinion and raises the expectations of the jurors. Therefore, this unrealistic demands are not always fulfilled by real labs for crime investigation.