By default, user group administrators can control all jobs submitted by users who are members of the user group.
For example, for the configuration shown and the default setting STRICT_UG_CONTROL=N in lsb.params, user1 submits a job:
job1 can be controlled by user group administrators for both the marketing and financial user groups since user1 is a member of both groups.
With STRICT_UG_CONTROL=Y defined, only the user group administrators for marketing can control job1. In addition, a user group administrator can be set for the group engineering which has all as a member.