What are the pros and cons of police investigations relying on paid informants. Discuss any experiences you or family/friends may have had with the police officers 'code of silence.' If you have not had any, research and find an example of the police 'code of silence' influencing a case or situation. How do you feel the supposed 'code of silence' influences public opinion of police officers? Conversely, can such loyalty be beneficial or even necessary in police work? If so, how?