Judge Shira Scheindlin of the Manhattan federal court today begins hearing allegations that the NYPD has been unlawfully stopping minorities under its stop-and-frisk program, reports The New York Post.

A Columbia professor who has analyzed stop-and-frisk data and a representative of the Bronx District Attorney’s office, which has refused to prosecute some trespassing cases without first interviewing the arresting officers, are expected to testify for the plaintiffs.

Click here for the BronxInk’s special report on residents views of stop-and-frisk procedures in the Bronx.