Do declining police numbers increase violent crime?

Owl is sure Tory Police and [Increasing] Crime Commissioner Hernandez will have an interesting theory!

“Police chiefs have hit back at claims a massive 90% rise in violent crime across Cornwall and Devon in the last nine years might be linked to ever decreasing officer numbers.

In Devon and Cornwall there were 32,509 violent crimes reported in the year to September 2017 (the latest figures), a 91% rise from the 17,058 reports received in the year ending September 2009.

However, over the same period the full-time equivalent number of police officers at the force has fallen by 18%, from 3,562 in September 2009 to 2,921 in September 2017, a loss of 641 officers.”