Reports on users

I have a user who I suspect is disrupting the network and I need supporting evidence.

The User Activity Detailed Report monitors the activity of one user (or a small group of users) on the network. The Report details the workstations, printers and programs that the user has used. It also details when they logged on and off the network.

I need to discover how much a particular group of users uses the network over a one month period.

The User Activity Summary Report monitors the activity of a group of users on the network. The Report summarises the usage of workstations, programs and printers by the group. It also provides average session times and the average number of pages printed by the group.