This add-on requires Report Improvements (free) add-on

Implements report queues, with auto-assignment rules and handy search links
Multiple queues to manage reports with
Admin-defined (Under AdminCP => Content => Reports => Manage Queues)
Usergroup-based access to queues
Flexible auto-assignment rules
Optional, Auto-report on new threads in a set of forums
Overview page with all report queues
Opt-out of report queues to display in the mod bar
Report & moderator statistics on the front-end
Adds search links to reports, threads and user card to quickly find reports & warnings.
Show user renames when viewing a user report
Version history of reported content, snapshots when content is reported.
Automation around resolving reports when performing thread/post moderator actions
Report watch/unwatch
"Copy reply bans from a thread" to bulk-copy thread reply bans from thread-to-thread
Usergroup-based access to queues
May define a list of user groups who can see and interact with a queue

Flexible admin-defined auto-assignment rules
Admin-defined (Under AdminCP => Content => Reports => Manage queue rules)
Auto-create reports on new threads in a forum
Optional on the user-group of reporter
For reports:
Optional on the user-group of reporter user
Optional on the user-group of reported user
Content types
Options for each criteria:
Ignore this criterion
At least one selected
All selected
None of the selected
Report & Moderator Statistics
Displays graph of moderator activity for:
Reports Handled
Report Comments
Moderator actions
Reports resolved per month
Reports made per day of month
Reports per forum
All reports downloadable as CSV files.
Permission controlled, admin group enabled by default.