Is it reasonable to question the detainmant of an individual because of their skin color?

I went to Walmart today and I saw three cop cars lined up and there was a women being detained with her children watching. I told a man who was watching "i hope it has nothing to do with her children" he said "im afraid she's being detained because she's black"

Is it reasonable to question the detainmant of an individual because of their skin color?
Post Opinion