We know for a fact that some school camp operators are using gear that is waaaay too old.
Here's some tips on making a judgement for yourself:
Helmets: A good helmet looks good. If the clips at the back are threaded ring style, its way too old. If the straps are deformed and deteriorated along the edge its too old. If they are a wild mixture of different brands, styles and colours, beware.
Maranatha use new Edelrid Ultralite helmets U.I.A.A. approved.
Carabiners: Maranatha use all "keylock" gates. That's a system where the gate keys together with the body in a way that prevents snagging. All Kong carabiners have this and since Kongs' patent on the system ran out, newer carabiners of other brands also have it.
Notice the 4 bands of knurling on the gates. That signifies it is the newest version. 3 bands for the previous model. The screwgate carabiners pictured are Stainless Steel, more expensive but a joy to use.
Harnessess: It is vital to use good harnesses. Maranatha use "Vertical" brand "Gym" harnesses. We have 150 of them in service. Notice that they have a new shiney appearance. That's cause they're new. Look for the date of manufacture on the belt. If it is not there, be suspicious.
Ropes: We buy it by the 200M roll, Sterling brand from the USA, we give it light use then we throw it out.
If ropes look furry, faded or un-even be suspicious.
K2 Base Camp in Wickham St. Fortitude Valley is the exclusive supplier of climbing gear to Maranatha.