Officers are mandatory to read the Miranda Rights to suspects before questioning. Miranda rights gives suspects an opportunity to not answer questions from the police and to be knowledgeable of their constitutional rights. After suspects hear their Miranda right they know that their answers will be used against them for evidence in the court room. The reason the government required the Miranda Rights law because suspects or not everyone has the constitutional rights and it 's up to the police to determine if the suspect is guilty. Miranda Rights isn 't necessary helping out guilty defendant, but it 's a better procedure to detain suspects without violating their constitutional rights. For example, if the Miranda Rights didn 't exists 100