Yeah, I think this is likely what happened, will be interesting to see what the investigation finds. I’m surprised there isn’t any sort of backup power for the voice recorder, it’s there to help investigate incidents, those 4 minutes would have contained a lot of vital insight into what was going on.
*Curries unless you’re talking about the electronics retailer
If you’re just referring to the restaurants, I’d just call one of those restaurants an Indian (as in the cuisine) or maybe a curry house. Tandoori, Balti, etc. all relate to styles of cooking and may be used in restaurant names, but if I was referring to restaurants that serve Indian style curries in general, I would just call it an Indian.