This might work if there were 100,000 extra police to enforce it, but there ain’t.
for several years, the Police have not been perusing real crimes like burglaries and violent attacks because of lack of numbers, so there is no way they could cope with the extra workload Boris is trying to heap on them.
When the edict is unreasonable, and the manpower does not exist to enforce it, then the only possible end result is failure.