All JMS pickup sessions are not refereed; like other pick-ups, players police their own behavior. There is a captain at every session to balance teams and handle any misbehavior issues should they occur (which is rarely). Please contact the session captain with any concerns. 

By registering with the site, you acknowledge that hockey is a physical sport and injuries sometimes occur. You agree not to hold us, JMS Hockey LLC, or the session captains responsible for injuries you sustain on the ice. You also agree to pay for any ice times you register for. If you cancel less than 48 hours before a session begins, you can be responsible for all or a portion of the skate time you promised to attend.
Full terms and conditions available here: https://jmshockey.com/terms