Putting the lesson in English grammer aside, let's get back to the real reason I suspect Ethel posted this question, the fact that the police gave this farmer a hard time because he was Black.
This seems to be a case of bad communication between the police. Surely if it was found to be a perfectly innocent situation, it should have been phoned through as such, and an end put to anymore complaints.
We now come to the fact that he was reported just because he was Black. The public are told to be vigilant at all times, so yes I think he would have more chances of being reported because he stood out, in other words he didn't look the typical farmer. There must be many White people who have been subjected to similar treatment by over zealous police officers, when that person does not fit into the surroundings for whatever reason.
It's not all bad though, in his own country of Zimbabwe, if he was White he would be thrown off his farm.