It has already been ruled police don't have to know the laws they enforce at the point of brutality. Why on earth would they want to learn something that will just get in their way of absolute authority over everyone.
I still suspect they are being trained to ignore their fellow citizen's rights and to brutally suppress dissent. solely to justify more heavy handed and anti freedom laws when people start fighting back for their god given rights.
Much like creating fake terrorism plots to justify anti freedom laws "designed" to combat terrorism, but in reality turn a country into another tyranny.