How has the Black Lives Matter movement shown the effects of abuse of power by the government

How has the Black Lives Matter movement shown the effects of abuse of power by the government/police? What major conflicts occurred during the protests by the police?

A comprehensive paper must be submitted covering an aspect of policing today.  The paper should be well organized and at least five pages in length.  At least three professional sources are to be used to help support your argument.  (The paper must be double-spaced using Times Roman 12 Font and include APA citations, a cover page along with a works cited page which do not count toward the five page minimum requirement.)