The correct active voice for sentences are:
The director of the ACLU claimed that police arrested innocent people and they are not white.
Loitering laws can help to curb gang activity, but these laws may also harassed innocent people.
Most Americans have no idea how much racial profiling police carries out.
Bob Herbert believes that police, as a result, often humiliates citizens.
People must take a strong stand against the use of racial profiling.