Immigration and Customs Enforcement -LRB- ICE -RRB- is a federal law enforcement agency under the United States Department of Homeland Security -LRB- DHS -RRB-, responsible for identifying, investigating, and dismantling vulnerabilities regarding the nation 's border, economic, transportation, and infrastructure security. The largest components within DHS are Homeland Security Investigations -LRB- HSI -RRB- and Enforcement & Removal Operations -LRB- ERO -RRB-.
Immigration and Customs Enforcement -LRB- ICE -RRB- is the largest and primary law enforcement agency of the United States Department of Homeland Security -LRB- DHS -RRB-.