It often happens that the police investigates a criminal case very poorly. The reason is that the investigation officer is the person on whom the entire investigation is dependent. It is easy for the offender and his supporters to bribe that person and get maximum favors from him in getting the poor investigation done.
In such like circumstances it is best to change the investigating officer and get the case re-investigated. Proper procedure of re-investigation is to file application before the senior officials of police. They usually replace the investigation officer and order for re-investigation of case.
If a criminal case is not properly investigated, it is hard to prove it in the court of law. Because the prosecution has to prove a criminal case beyond the shadow of any doubt. So if investigation is poor, the case has doubts and ultimately it results in poor decision.
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