diff --git a/common/group-mgr.c b/common/group-mgr.c
index 82024b4..36daa30 100644
--- a/common/group-mgr.c
+++ b/common/group-mgr.c
@@ -539,28 +539,12 @@ int ccnet_group_manager_add_member (CcnetGroupManager *mgr,
 {
     CcnetDB *db = mgr->priv->db;
 
-    /* check whether user is the staff of the group */
-    if (!check_group_staff (db, group_id, user_name, TRUE)) {
-        g_set_error (error, CCNET_DOMAIN, 0,
-                     "Permission error: only group staff can add member");
-        return -1; 
-    }    
-
     /* check whether group exists */
     if (!check_group_exists (mgr, db, group_id)) {
         g_set_error (error, CCNET_DOMAIN, 0, "Group not exists");
         return -1;
     }
 
-    /* check whether group is full */
-    /* snprintf (sql, sizeof(sql), "SELECT count(group_id) FROM `GroupUser` " */
-    /*           "WHERE `group_id` = %d", group_id); */
-    /* int count = seaf_db_get_int (db, sql); */
-    /* if (count >= MAX_GROUP_MEMBERS) { */
-    /*     g_set_error (error, CCNET_DOMAIN, 0, "Group is full"); */
-    /*     return -1; */
-    /* } */
-
     char *member_name_l = g_ascii_strdown (member_name, -1);
     int rc = seaf_db_statement_query (db, "INSERT INTO GroupUser (group_id, user_name, is_staff) VALUES (?, ?, ?)",
                                        3, "int", group_id, "string", member_name_l,
@@ -583,13 +567,6 @@ int ccnet_group_manager_remove_member (CcnetGroupManager *mgr,
     CcnetDB *db = mgr->priv->db;
     char *sql;
 
-    /* check whether user is the staff of the group */
-    if (!check_group_staff (db, group_id, user_name, TRUE)) {
-        g_set_error (error, CCNET_DOMAIN, 0,
-                     "Only group staff can remove member");
-        return -1; 
-    }    
-
     /* check whether group exists */
     if (!check_group_exists (mgr, db, group_id)) {
         g_set_error (error, CCNET_DOMAIN, 0, "Group not exists");