After the domestic baggage reclaim belt there are some double doors - LCY keep them locked as there's no guard there and people landside would be able to walk the wrong way through a fair chunk of the airport.
Thing is, they don't seem to have a process in place to alert someone to unlock the doors when a flight lands, and the area is completely unattended. Staff appear to come out of a door on the left (towards the car park side of the building) but there's no phone, intercom or whatever.
It's clearly not just an occasional issue.....