Spain's crippling financial crisis has led to forced evictions, high unemployment and public outrage.
Deutsche Welle reports that human rights groups say an alarming form of discrimination has emerged in this climate of anger.
They say minority groups are being stopped by police more frequently.
Amnesty International accuses police in Madrid of having monthly quotas for arrests based on racial profiling.
Amnesty says racial profiling is illegal under international law, but Spanish laws are vague on the matter.