Nobody serious believes modern crime statistics.
It's just manipulated.
Any Police force can effect crime figures using many techniques, both by changing the definitions for different categories of crimes to how they actually Police the streets.
For example on the latter.
A Police force that is pro-active, and say carries out 'stop and search' is going to find more people breaking the law on carrying weapons...it will reduce the crime rate. Compare that to a Police force that isn't pro-active on stop and search and has a higher bar for stopping people.
The pro-active stop and search increases the number of crime arrests and thus actually reduces crimes....for example stabbings. It's just a fact that if you had a Police force that stopped and search the most likely offending groups for whatever category of crime you would reduce actual crime.....but this became politicised as demographics changed.
A passive Police force that only responds to reported crime (or doesn't even bother much in some cases) and has different attitudes to the difficulty of crimes.....as Iceland's CEO mentioned the other day is going to provide a declined service to that of the past.
That's happened, people have grown skeptical of Police effectiveness and the situation where people don't even report crime now is a reality given to us by our elites.....themselves a degraded bunch.
The more people lose trust in the Police and/or don't bother reporting crimes and the less pro-active the Police are in looking for crime and stopping actual real crimes then the more fake crime stats will be.