I have with previous 3 Freelander 2's and Merc C 200 cleaned rear handbrake shoes by coasting in neutral and VERY GENTLY applying handbrake to clean rust from shoes and drums.
Advised many customers with Vauxhall and Volvo to do same.
No longer possible with electronic park brake.
Not sure about MOT procedure (8years since I retired and stopped testing) as permanent 4 wheel drive vehicles were tested by applying park brake whilst vehicle coasting at about 12-15 mph.

Need to think about removing rear discs once a year, inspect and clean. All FL2's (3) Gone
2011 Mercedes C180 CGI Gone
FL2 GS Auto SD with heated leather, factory tints, alloy spare and a few other bits.

The rear brakes no longer have a handbrake 'shoe', I believe the motor winds the pads onto the disc do no need to remove as you can see them as you can the fronts.

I think

You can apply the electronic parking brake at <3mph - would be enough to clean the shoes (if it still has them - see above post). Ex AA Series III LWB Safari - Gone
300TDi Disco (bought new - terrible car) sent back after 18 months
Freelander 1 Estate - leased, given back at end of lease
200TDi Disco (bought from a mate with 100,000 on the clock) - Gone
Disco 2 TD5 - sold and exported to France
FR2 TD4 GS - Gone
FR2 SD4 HSE - Now changed for a DS
New model ex-demo Evoque S 180 in white
Unable to order a new DS, so gave up. Now have a Volvo S90 Recharge.

Thanks for reply and info. All FL2's (3) Gone
2011 Mercedes C180 CGI Gone
FL2 GS Auto SD with heated leather, factory tints, alloy spare and a few other bits.

And I've just remembered - if you apply the parking break AND HOLD the lever, the brake is applied as an emergency procedure. It's in the handbook:
In an emergency, with the vehicle travelling
more than 3 km/h (2 mph), pulling on the EPB
switch and holding gives a gradual reduction in
the speed. The brake warning lamp will
illuminate accompanied by a warning tone and
a warning message in the message centre. The
stop lamps will illuminate.
 Ex AA Series III LWB Safari - Gone
300TDi Disco (bought new - terrible car) sent back after 18 months
Freelander 1 Estate - leased, given back at end of lease
200TDi Disco (bought from a mate with 100,000 on the clock) - Gone
Disco 2 TD5 - sold and exported to France
FR2 TD4 GS - Gone
FR2 SD4 HSE - Now changed for a DS
New model ex-demo Evoque S 180 in white
Unable to order a new DS, so gave up. Now have a Volvo S90 Recharge.

My manual park brake appears to have just pretty much failed on me. Lots of handbrake travel with very little hold.
Guessing its going to be a new cable as the current one has stretched, or new brake shoes.

More likely the adjuster on the drum has failed. Either way, you're going to need to get the drum off to sort it out. Ex AA Series III LWB Safari - Gone
300TDi Disco (bought new - terrible car) sent back after 18 months
Freelander 1 Estate - leased, given back at end of lease
200TDi Disco (bought from a mate with 100,000 on the clock) - Gone
Disco 2 TD5 - sold and exported to France
FR2 TD4 GS - Gone
FR2 SD4 HSE - Now changed for a DS
New model ex-demo Evoque S 180 in white
Unable to order a new DS, so gave up. Now have a Volvo S90 Recharge.

it wasnt holding very well when i got the car last August. I asked them to sort it which they appeared to have done but clearly it was just a quick fix.

I want the brakes overhauled/replaced anyway even though they dont really need it so will get the garage to do it all in one.