IFR approach protocol in the UK
Scenario: Flying VFR in uncontrolled airspace without a service, you're approaching your destination airfield (non radar equipped but under a LARS overlay with MATZ bordering the field) which has a published instrument procedure with a manned tower and is currently under IFR conditions.
Who would you talk too to start the ball rolling on a clearance to shoot the approach? Control, Information, LARS or direct to the field tower.