How Can I Return The 5 Records From A Database Table Using Ado.net

I have an incident reporting management application. People are supposed to report incidents by this application and every time some one reports an incident, they also select thier employee#(reqiured field). so how can write an sql statement that returns only the Top 5 incident reporters i.e going by employee number. Iam thinking of applying a COUNT function on the incident_id and grouping by Employee# but then how do i make sure that only the top 5 incident reporters are returned.