Jenny the safest place is called Thornhill estate at Modderfontein,about 20 minutes from Bruma.
The biggest threat is not the crime but in your not recognising when you are doing something "silly".
Your husbands Company need to get someone from a risk assesment Company to brief you(and no, I dont know who to recommend) and to also check out your rented accomodation iro
security.
I strongly suggest that is non-negotiable.
The second thing is that if someone local offers you advice, take it to heart.
you need to get into an awareness routine.
good luck
.