There is a great deal being reported in the United States of America about police brutality. Some would argue that there is a great deal of police brutality in the United States, but they fail to understand that the police in any nation reflect the mores and culture of the people in that nation. If US police are brutal they merely reflect the brutality that afflicts life in the USA and its obsession with guns.
There are more than 75 small firearms in the US for every hundred citizens. No other nation has such a high proportion of small firearms per capita. It is therefore unsurprising that of people have guns they will want to use them, and in their desire to use them will find excuses to use them where no proper reason exists. This seems to apply to law officers and criminals as well as ordinary citizens.
Having invented firearms, humanity cannot, unfortunately, uninvent them, but it can make their acquisition and use more difficult by taxes, by bans and confiscations, and by a whole host of other measures.
In truth, firearms are bad for the health of a nation; if the government cannot properly protect its citizens to such an extent that the citizen must own a gun to rely on self-protection, then there seems little point in having a government at all.