Like I say, that would only work if you actually have the staff and vaccine supply to enable 24 hour working.
Also, whilst NHS staff and care workers are in the current priority groups, I don’t believe that police, fire or other key workers are. Unless you have a surplus in supply of vaccine, for every person you vaccinate outside of the priority groups, you will be delaying vaccination for someone who is within them.
Obviously I meant to stay with the current vaccinating schedule which I believe is health workers and the elderly/vulnerable?
So out of those, health workers on nights could be done then, leaving more daytime availability for the vulnerable groups?
Maybe, obviously there will be logistical issues in all of this.