I'll have to look up the Prevent Program, so I am not sure. I did enjoy the See if. Say it. Sort it program while I was there. Another person travelling with me to London and I love to use it now when an opportunity presents itself. It is so easy to remember!
Here is a good article about the use of Red Flag laws in the US. It contains information about the times it has been used, but these laws struggle to roll out and be used because conservatives tie them up in court until they go away.
"AP found such laws in 19 states and the District of Columbia were used to remove firearms from people 15,049 times since 2020, fewer than 10 per 100,000 adult residents. Experts called that woefully low and not nearly enough to make a dent in gun violence, considering the millions of firearms in circulation and countless potential warning signs law enforcement officers encounter from gun owners every day."
My BIL is a MAGA police officer. He would never use a red flag law.
The people complaining about violence are the one stopping any meaningful progress unless one of their own is killed.