You should consult with a personal injury lawyer in your area to be certain but the likelihood that you will find an attorney to represent your son against the teacher on a contingent fee basis for so minor an injury is very slim. I assume that was part of your question, since you listed Lawsuits as one of the tags.
It may be that you have a basis to sue. That is the teacher committed a tort (civil wrong) against your son (battery). But a big part about whether it is worth your emotional effort and a lawyer's time to pursue a civil action against someone is whether there is going to be a big enough damages award or settlement.
It probably happened too long ago for child protective services or the teacher licensing authority to be interested in investigating, but you could report the incident to both.
If you are interested in having the teacher criminally prosecuted and find that the police have lost interest in that since they found out the offender was the wife of a detective, you could speak to the prosecuting attorney. I believe they are called district attorneys in Florida.
If you can't find a personal injury lawyer to take your case or you decide not to seek one, make an appointment with the district attorney for Perry to see if you can interest that office in pursuing a criminal action.
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