Can you identify different roles of the Executive and Judiciary given in this chapter?

Indian constitution separates the power and roles of Executive, Legislative and Judiciary. It is one of the main features of constitution. In this chapter, police has performed the executive part and courts are part of judiciary. Their roles are very different to each other. Police maintains the law and order in the district or city. It is the duty of the police to catch the criminals and reduce the criminal activities. Whereas Judiciary checks the validity of accused to be guilty or not with the help of evidences and witnesses investigated by the police. If found guilty, he sentence jail or fine or both to the criminal.