This is the most commonly asked question.
The failure to read rights may not make any difference to your case. The importance of being read your rights depends on whether a person is in custody. In other words if the police ask you questions and you answer them but you are not in custody it is considered voluntary and may be used in court against you. If you are under arrest or in custody any statements you make in response to questions may be suppressed and kept out of court. Failure to have your rights read to you does not mean that you will automatically win your case. The Miranda rights are intended to protect citizens who are under arrest from making incriminating statements.