If you have told the person to stop or if you feel that telling them would be unsafe you can speak to your GRT, Housemaster , RLA, RA or any of the other staff in your living group.  If you would rather go outside of your community or if you do not live in Institute Housing you can file a complaint with Campus Police, speak with one of the deans in Student Support Services, or you can speak with someone in the Office of Student Citizenship about the formal disciplinary options available to you.
 

S^3 works closely with many offices around the Institute, including Student Financial Services.

Come in and talk with someone in S^3 if time allows; otherwise, call S^3 to speak with someone by phone.

Helping someone your worried about can be stressful. S^3 is available to talk with you confidentially and to assist in generating support for your friend.

There are many people across the Institute who will listen. In addition to professors or trusted advisors, undergraduates can contact their Graduate Resident Tutor (GRT), Housemaster or Residential Life Associate (RLA).

That depends on the nature of the complaint, but generally that person will meet with someone in the Office of Student Citizenship who will review the complaint and begin the disciplinary process.  Once their response is received the Chair of the Committee on Discipline will meet with the Director of the Office of Student Citizenship to determine where the case should be heard.  The COD will hear those cases where the potential sanctions are more serious, but the case may be heard by DormCom JudComm, or Administrative Review.  Throughout the process you will be informed of the progress, but you can always contact the Office of Student Citizenship to find out the progress.

MIT offers several programs for minority students. You can find more information here: Asian Student Resources, Association of Student Resources, The Latino Culture Center, and Black Students Union.