Absolutely.
The study I was highlighting was in the Yale Law Journal and was published in 2018. That was the most systematic study that looked at every study of body cameras that had been accomplished so far. It found that their use did not reduce police killings in black communities and did not significantly impact use of force.
Another study suggested that police feel confident in the kind of violence that they regularly take part in, so they see no harm in it. Other studies have highlighted the fact that police will often turn off the cameras during violence, so that footage goes missing.
We need to remember that we'd be pushing for reforms that are extremely expensive. A significant public cost is required to implement body cameras, which at best are ineffective and cannot consistently be relied on in the context.
This year, for example, we already had double the police killings by July that we had by that time last year. We're in a crisis, and throwing significant amounts of money into reforms that are not effective is fundamentally not the appropriate solution. It's just a matter of kicking the can forward and not acting on the immediate changes we need to see.