Reading back through the posts I realise there's a bit of confusion...
Somebody mentioned the vehicles in use over here and then I posted a pic of my own LR.... oops.
For the record the Landies in N.I have included...
Shorland - Relatively heavily armoured SIII, often with turret from Ferret armoured car fitted. It was originally made by Shorts in Belfast and spawned a series of sucessors which are still manufactured for export.
SIII VPK - A Series III with a "Vehicle Protection Kit" light applique armour, sometimes (wrongly) referred to as "Makrolan". A similar kit was produced for the Lightweight.
APV - Early plastic armoured Defender, didn't last too long as they were massively expensive.
CAV - "Courtalds Armoured Vehicle" Defender with a plastic armour shell, remarkably moulded in only two major pieces. Still in use.
Both APV & CAV are colloquially known as "Snatch"
The above were used by the Army, with the exception of the Shorland which also saw service with the RUC.
Hotspur - Steel armoured, based on a 109 Stage 1 V8
Simba - As above but with widened chassis and spaced steel armour.
Tangi - Composite armour, based on 110, remains in service with PSNI
Tenba - Basically a "Simba-ized" 110, very few built.
All of that group were used by the RUC/PSNI.
Other, non-LR armoured vehicles have included the Humber Pig, Alvis Saracen, Daimler Ferret, Alvis Saladin, GKN Saxon and the somewhat odd Chevrolet Tavern, both Saxon and Tavern are still around though in very limited numbers these days given the situation.
Apologies, again to anyone distressed by the non-bushcraftyness. LR's tend to get me talking.