The thing is, in this country, we don't have a Paramilitary Police like everywhere else in Europe and mostly the world. It's why we aren't armed and we rely on the goodwill and desire by the majority of the public to obey laws, instead of enforcing it by strength or powers.
We Police by Consent of the Public and therefore our powers and approach tend to be different to that of our Cousins from abroad. (It's interesting to see where this comes from if you have any spare time).
That being said, when life and limb is at risk Police have more than enough powers and the new emergency measures will allow Police to do more of what you see European Police doing. Up till now Police just didn't have the powers to stop people having the freedom of movement or gathering outside. It's really important people understand that and don't blame the Police.
Plus, to be honest, look at it this way.
1. In France 200,000 Police were deployed immediately to keep the Peace and keep people inside
2. The French have 21500 Municiple Police, 145,000 National Police and 98,000 Gendarmerie & military Police to police 60 million or so people. French Military Police have jurisdiction over the Public
3. Spanish Police have the Civil Guard, Municiple Police AND National Police all with different jurisdictions but covering, in total about 200,000 or more Officers to Police 44 Million people
4. The British have 123,000 Police combined and 12,000 Special Constables to police 60 million people, which is a considerable amount less. British Military Police do not have jurisdiction over the public.
5. The Italian Police have 325,000 Municiple, Carabinieri, Polizia and Guardia (The latter you normally see at Airports etc but they have Police powers over the Public) to police 60 million people and is the largest Police per Capita in Europe.
Frankly put. If the country goes into lock down the Police will struggle to man the 3 Shifts effectively. Which is why you hear of Officers being redeployed from other things like Desk jobs, control rooms, Training roles etc.