racial profiling
noun [ U ] uk/ˌreɪ.ʃəl ˈprəʊ.faɪ.lɪŋ/ us/ˌreɪ.ʃəl ˈproʊ.faɪ.lɪŋ/
种族形象定性（指警察因肤色或种族而怀疑人犯罪）
the practice by the police of thinking that people of a particular race or colour will behave in a particular way, especially that they will commit crimes
The police have faced claims of racial profiling in the past. 警方过去曾面临过以种族形象定性的指控。