A police officer I know said much the same thing and he wishes this technology had been available years ago. Equally of course members of the public can film them if they wish to do so.
My father in law is also a serving police officer and he loves them, protects him from people making false accusations of wrong doing and generally makes his job a lot easier.
We have just started to use them at my place of work, takes a little while to get used to but I think generally they help.
I was dead against bodycams a few years ago, I thought they'd be a barrier to public comms as people wouldnt want to be filmed.
In reality I've done a complete 180. They're a great behaviour modifier. People have become a lot more prone to make complaints, it's amazing what people will allege what was said or done that simply didn't happen. Body cam footage simply negates this and a stressful complaint is cut off at the first point. Bodycams protect staff in more ways than you might think.
They've become second nature and normal for everyone and theyre not the barrier I thought they'd be.
You do however get the occasional halfwit acting up to the camera which is tedious strangely they never request a copy of their acting skills.
Any enforcement officer who gets shirty about being filmed by a MOP in a public place needs to question what they're doing. Film me and you'll get someone acting professionally, within the rules and respectfully. If I get something wrong I'll be the first to apologise, I'm human I get things wrong sometimes.