But court will also take into account that the victims considered and believed them as police officials and never doubted them not being police doing forced felony. At most, court will consider it to be unlawful arrest or detainment. They also had time to warn them of using lethal force or call police helpline for help. And with our judicial system, good luck proving self defense especially if there was no weapons with the alleged police officials.
Many times, police officials don't identify themselves and most of time, intel people too. And then, how do we verify that the documentation they provide for identification is not a fake one? If they threaten you to take away by force even if to allegedly police station, can we consider it kidnapping and use lethal force?
And I believe U.S. has better laws in favor of civilians, 1st (Ammendment) unlike Pakistan which is influenced by British law.