Identify one critical responsibility of ICE's Enforcement and Removal Operations (ERO) division.

One critical responsibility of ICE's Enforcement and Removal Operations (ERO) division is the lawful apprehension and removal of non-citizens under deportation orders. This function is central to the mission of ERO, which focuses specifically on immigration enforcement and managing the detention and removal of individuals who are in the country unlawfully or who have violated immigration laws.

ERO carries out these duties in accordance with federal laws, ensuring that the processes followed are legal and adhere to the rights of individuals. This responsibility is fundamental to maintaining the integrity of immigration laws and regulations, thereby contributing to national security and public safety.

The other responsibilities mentioned, such as conducting background checks, supervising the visa application process, and providing legal representation to immigrants, do not fall under ERO's purview. Instead, these are handled by other divisions or agencies within the Department of Homeland Security or the Justice Department, further emphasizing the specific focus of ERO on enforcement and removal activities.