There are two Global access rights related to Audit Trail information. These are not specific to an object (i.e. project, resource, etc.), but global to all audit data for objects the user has access to.
These can be added to a Group and users who need access to audit trail information then added to that group (best practice) or they can be added to specific users.
Audit Trail - Access | Allows Access to Audit Trail under Data Administration | Group: Administrator - All Rights |
Audit Trail - View - All | Allows resource to view Audit Trail for any object in the application. | Group: Administrator - All Rights |