Miss. Code § 63-11-21
If a person refuses upon the request of a law enforcement officer to submit to a chemical test of his breath designated by the law enforcement agency as provided in Section 63-11-5, none shall be given, but the officer shall at that point demand the driver's license of the person, who shall deliver his driver's license into the hands of the officer. If a person refuses to submit to a chemical test under the provisions of this chapter, the person shall be informed by the law enforcement officer that the refusal to submit to the test shall subject him to suspension of the privilege to operate a motor vehicle. The officer shall give the driver a receipt for his license on forms prescribed and furnished by the Commissioner of Public Safety. The officer shall forward the driver's license together with a sworn report to the Commissioner of Public Safety stating that he had reasonable grounds and probable cause to believe the person had been operating a motor vehicle upon the public highways, public roads and streets of this state while under the influence of intoxicating liquor or any other substance which may impair a person's mental or physical ability, stating the grounds, and that the person had refused to submit to the chemical test of his breath upon request of the law enforcement officer.
Miss. Code § 63-11-21