In the charts below you will see a visualization of data provided here by ProPublica. It is important to note that the board investigations rely heavily on the information provided by police precincts to investigate civilian claims. Many of the cases are determined to be unsubstantiated because insufficient evidence was provided by the police precinct where the complaint was filed. This is explained in more detail by ProPublica in the link above.
The following dashboard provides filters for you to dive into the two charts displayed. The charts show the top reasons for civilian complaints and the recorded ethnicity of the person making the complaint.