This U.S. Immigration and Customs Enforcement (ICE) report discusses ICE investigations and its mission roles in multi-agency areas of responsibility. The following is taken from the executive summary of the report: "With the inception of the Department of Homeland Security (DHS), many investigative functions formerly under the purview of the U.S. Customs Service (USCS), the Immigration and Naturalization Service (INS) and the Federal Protective Service (FPS) were merged to form U.S. Immigration and Customs Enforcement (ICE). When taking its historic law enforcement origins into account, ICE is one of the oldest and most experienced federal law enforcement agencies in the United States. Such experience cannot be paralleled by any other agency. The mission of ICE is to protect America and uphold public safety by targeting the people, money and materials that support terrorist and other criminal activities. In partnership with local, state, national and international governments and agencies, ICE uses its immigration and customs authorities to address vulnerabilities and prevent violations that threaten national security and public safety. With the formation of ICE, law enforcement mandates and responsibilities previously handled by USCS and INS and their supporting statutory and legal regulations were examined with great scrutiny. With the merging of these federal authorities, ICE became one of the most diverse law enforcement agencies within the federal government. In fact, the DHS Office of the Inspector General (OIG) found that 'the merging of customs and immigration functions into one investigative body created a potentially powerful enforcement mechanism.' ICE investigators have authority under Title 19, United States Code (USC), which permits them to pursue complex banking and financial misconduct cases, conduct searches without first obtaining a warrant and seize assets of criminal enterprises engaged in customs violations. In addition, ICE investigators have Title 8 authority to make arrests without a warrant for immigration violations. The melding of these customs and immigration law authorities allows ICE investigators to pursue both avenues with unique efficiency and thoroughness, making cases stronger and more likely to be accepted for prosecution with more significant penalties."