I think if the fruit and veg is Aussie produce, it should be fine.

But if you are going the extra length to be careful, anything imported might need a bit of a scrub with a brush under water, but i don't think the detergent is necessary. And peeling is a good idea.

I've lived in a third world country for about a year where everything needed to be scrubbed and the water used for washing food had to be boiled for 5 minutes (high altitude - long boiling times needed) and then peeled, so for me its almost routine. When a salmonella outbreak occured we had to scrub eggs in water and detergent before cracking them open, but the detergent needed to be only very very slight because the shells are porous and otherwise your eggs will taste like detergent. And even after all those precautions i still caught the parasite giardia from rinsing my toothbrush under the tap... so glad to be back in Australia for my pregnancy (for now, anyway).