The Case of the Disappearing Policemen

Quote from Alison Hernandez, current Police and Crime Commissioner in Express and Echo:

“… there are many officers who used to spend much of their time patrolling streets, who are now much less visible, but nonetheless highly effective in keeping us safe from extremism, cybercrime and protecting our children from sexual exploitation …”

Four questions:

who did these tasks before the officers were taken off the streets?

if no-one did them, why was this and exactly how many officers have been taken off the streets to do them?

could these tasks be done by civilians as they are in other police forces?

if officers have been taken off the streets to deal with terrorism – who is out looking for signs of terrorism on the streets – where it mostly occurs?