Legal Question in Criminal Law in Minnesota

It appears that you were charged with a misdemeanor. This carries a maximum penalty of 90 days in jail and $1,000 fine, and possibly restitution for the cost of the damage. If the fence is fixed to your neighbor's satisfaction you probably do not have to worry about the restitution. It is very unlikely that you would be subject to the maximum penalty. Witnesses are not necessary to get a conviction. Apparently, the prosecution has some evidence to make them believe you committed this act. It seems unusual that the police would become involved as you describe the situation. Why were they called? Normally, I would think they would consider this a civil matter. You should consider hiring an attorney to ensure the best possible outcome.