A CH cannot film you covertly as a matter of course, unless they had a valid and lawful reason. Communal filming would be made clear when you started employment or if it was introduced at a later date.I've been working in Home Care part time for around 15 years and tbh, if I found out that I had been covertly filmed, I wouldn't want to work in that home again. Common areas like lounges and corridors in Nursing Homes, maybe, as long as everyone involved, staff, residents and visitors could be made aware they were being monitored.