An inspection is simply a short note associated with a check-in. Currently, the limit is 40 characters.
Inspections may be used to document the results of code reviews and testing. They may be used to note whether or not the fix worked. They may also be used to provide directions such as whether or not a check-in should be merged or backported.
Any number of inspections may be associated with a given check-in. If they check-in is associated with a ticket then the inspections will also be displayed in the ticket view and history pages.
Inspections may not be editted or deleted after they're created.