Television depicts several law enforcement programs in which criminals sometimes admit or confess to crimes without being read their rights. Because of this, some cases may be thrown out even though the evidence may point to the accused.
Please read Miranda v. Arizona and do some research to see how well it has held up since it was first decided. Has Miranda been expanded or cut back? Currently, Miranda warnings are only given to suspects in custody (not free to leave) who are being interrogated. Should All suspects be given Miranda warnings whenever police talk with them, even if the person is free to leave?