With the 2014 design, edem.group.policy is being discontinued because the information in it's policy tab has been incorporated into the Membership Info widget of edem.group.member.info.
The Policy tab on the Group page provides information about the policy that governs activities on the group. These policies generally include the privacy level of the group (which is included via gs.group.privacy), allowed rate of posting, the forum manager of the group, and links to additional policy documents.