Federal agents in military fatigues chat with Chicago police officers in Chicago’s Brighton Park neighborhood on Oct. 4, 2025, after federal agents shot a woman during a confrontation. Joshua Lott/The Washington Post via Getty Images

Are sanctuary policing policies no more than a public relations facade?

In a new book based on hours of body-cam footage, a legal scholar shows how local police in sanctuary jurisdictions still help ICE − and why true non-cooperation is nearly impossible to enforce.

Contact Peter for

  • General
  • Media request
  • Speaking request
  • Consulting / Advising
  • Research collaboration
  • Research supervision