ICE leadership requested the help in sanctuary jurisdictions because agents there often struggle to track down immigrants living in the country illegally without the help of the police and other state and local agencies. Law enforcement officers in areas that refuse to cooperate with ICE and the Border Patrol — which include both liberal and conservative parts of the country — often argue that doing so pushes people living in the country illegally further into the shadows, ultimately making cities less safe because that segment of the population becomes less likely to report crimes or cooperate with investigations.