Top of the careers side-bar for me is this advert:
Thames Valley Police
Kidlington, United Kingdom
but if you click through it says:
The closing date for enquiries and receipt of completed applications is Friday 27th September 2013.
which was last week. Now on one hand they've paid for a 30-day listing so there's some small value continuing to show it (for brand awareness, etc. I suppose) but on the other hand it's useless as a job listing.
There's currently no 'application deadline' field on the job listing form. Might it be worth adding one so employers have the option of expiring the listing early?