CISA 3 point lock

[chris667]

Hello everyone. My first post here.

I am playing about and teaching myself how to pick locks, but I would like to make a purchase in a hurry to secure my new home's back door, and wanted to ask your advice before spending any money.

My new home has a very weird, bespoke back door that was made by the previous owner (a cabinet maker who was well known locally for his furniture making but knew nothing about first fix joinery or building regs). It's a ledged door, secured by a padlock with hasp and staple on the outside; not very satisfactory. The door is reinforced with steel, so strong enough, but nothing off-the-shelf in the UK would fit it as far as I know.

I love the look of the door, but one of the few locks I'd be able to fit without too much alteration would be the one on page 303 of this catalogue:

http://95.110.205.169/Catalogo_CISA_2015-EN/#303/z

It's type 57120 A big heavy rim fitting thing, with bolts that shoot up into the top and bottom of the door.

We like the idea of just needing one key to open the back door (which we'll treat like our main door), and our insurance company said they'd be happy with us using a six lever lock.

What do the experts here think? Would you be happy with it as the only lock on your back door? Are CISA locks worth having?

[mh]

The lock itself is looks nice and strong.
The problem with some of the double bit mechanisms is that self-impressioning tools have been made for them, where a special tool is just turned back and forth and then automatically adjusts to the correct bitting.
A google search for CISA magic key will show more on that.

[chris667]

Do you think it's likely that a would-be burglar in the UK would have such a thing?

I don't mean that to sound rude, genuinely curious. I am not worldly in these matters.

[mh]

I guess that depends on how common these locks are in a particular area
(if it's not an extremely high value target).