Yea, Brunei is very safe, we never feel any unsafe from robbers, snatchers, its a very very peaceful country, though some stealing cases are reported recently otherwise its a very very safe country.
Fully agree with pkian37 although once and a while an extremely cruel story comes-out, but I've never heard about an expat being involved in that. Burglary is however more problematic and I have seen people putting-up barb-wire around the perimeter of their plot (good neighbourhoods, alarms in place, etc) which they wouldn't do if there weren't a reason for it.