Diversity is important in policing. The police officers are always in close contact with ordinary people. People from any town come from diverse ethnic groups ,so if the police force recruits people from different ethnic groups, policing may become more effective. First, the police may become more reliable since ordinary people will see that their peers are part of the force. For example, a Pakistani police officer may be more reliable than an English police officer for a person from Pakistan. Secondly, communication between the police officers and people from town may be more fluent. If an " Indian" police officer needs information , the Indian people will be more open to give it to him / her. Diversity in policing will make the bonds between the police and ordinary people stronger and more effective.
I think it's he rarely mentions himself but goes into great details about others
