Question

what is the role of police in investigation of a crime

Answer 1

Police play an important role in crime .the most important role of the police is to investigate any complaints that is reported in their station.
the police do not decide who is guilty or innocent.

Answer 2

Answer:

Police officers are community helpers tasked with prevention of crime and also apprehensive of offenders.  

Explanation:  

Law enforcement officers, including police officer take the responsibility to investigate any complaint of crime and prevent them from happening. Investigation process includes recording of statement of witness and then collecting evidence, based on which police take decision to the guilt of the accused. Police files a charge sheet in the court against the accused if he founds any positive evidence.