When a police organization does the bidding of the politicians, it is no longer an organization to whom the word “justice” has any meaning. We’ve seen this for decades in the US, with the individuals being persecuted because of their political or religious beliefs. There are very few individuals who can withstand an assault from a government with unlimited funds and resources, including the power of the subpoena.
I think G. Gordon Liddy had good advice about how to handle a self defense situation. First, use a revolver, no brass left behind. 2nd, two to the chest, one to the head, just one side to the story. 3rd, don’t call the police, just get away from the scene quickly. 4th, file down the hammer, trash the barrel, remove the serial numbers, and throw the gun in a deep river.