ACE is the auditing system we use for our data in Chronopolis. More complete documentation is available at https://adapt.umiacs.umd.edu/ace
For getting ACE back to a clean state see Database Cleaning
Standard Operations
Adding A Collection
Removing A Collection
When viewing a collection, select the 'Remove Collection' option from the drop down list of available actions. You will be prompted to acknowledge the delete, after which all files, tokens, and logging events will be removed from ACE.
On larger collections it can take time for all the monitored information to be removed, but ACE can still be browsed during this time.