Theft out of a suitcase

My husband has arrived back from Oliver Tambo Airport on BA 6237. I was absolutely appalled to see how the cable tie on his suitcase had been cut and all his luggage had been rummaged through. His toiletries and chronic medication had all been thrown out all over in his suitcase. Who gives people the right to do this?? Why dont they just xray the bags??? I am absolutely disgusted!!!!! What about the goods that are missing???? How will be compensated???? I wonder if this is the norm or if I will even receive feedback. A black KWAY jacket and a pair of Levi jeans are by no means small change.