With good enough manipulation techniques you can make anyone do anything, so basically services can send LEO to groom undesirable citizen into committing a crime and then lock them up legally. It's just slightly more sophisticated than Soviets did.

Yea, you can absolutely do that. The country I'm speaking about is Denmark.

The police can also break down your door without a warrant and use anything they find against you. Them having entered illegally may have consequences for their unemployment(though it won't), but the evidence is still admissible in court.

Like where, North Korea?

Did you spend even 5 minutes thinking about what you just said?

Civilians rely on cops for instructions and directions. Furthermore a cop can order around civilians under threat of force.

If a cop forces you to commit a crime and then jails you, they can extort you for money corruption will be through the roof.

Thats what we have in Russia, the security services are superbly corrupt and regularly extort people. At least there they are breaking the law while doing so. You are suggesting we make it legal here.