The Miranda warning is a statement of your constitutional rights that law enforcement must read to you before they can interrogate you while you are in custody. The Miranda warning advises you of your right to remain silent and your right to a criminal defense attorney. Most defense lawyers offer free consultations, so it is important to consult with a competent lawyer or law firm if you believe that your constitutional rights have been violated.
If you are not read your Miranda rights, your statements to law enforcement may not be admissible as evidence against you in court. However, this does not necessarily mean that you cannot be arrested if you are not read your Miranda rights.
You can still be arrested if you have not been read your Miranda rights if law enforcement has probable cause to believe that you have committed a crime, even if you have not been interrogated. Probable cause is a legal standard that is required in order for law enforcement to make an arrest. It is based on the idea that there must be specific and articulable facts that would lead a reasonable person to believe that a crime has been committed and that the person to be arrested is the one who committed the crime.