As a former Law Enforcement Officer, I knew this.
I also knew that Police Administrators are PC, and will not discuss this.
the reason for this is that the elites want a NAU against the wishes of the populace. part of that involves the free flow of workers across the borders. never mind that the USA doesn’t really need low skilled marginally trainable people heavily seeded with criminals. The idea works for the elites on both sides of the political isle because the middle class taxpayer pays the bills. the elite dems get cheap votes and elite pubs get cheap labor.