Final answer:
The agency responsible for establishing guidelines for immigration detention facilities similar to jails/prisons is ICE (Immigrations and Customs Enforcement). Agencies like the DEA, ATF, and FBI have different roles within law enforcement, focusing on drug enforcement, firearms and explosives, and federal crimes, respectively.
Step-by-step explanation:
The law enforcement agency responsible for ensuring that proper guidelines and conditions of confinement for immigration are similar to jails/prisons is the Immigrations and Customs Enforcement (ICE). ICE is part of the Department of Homeland Security and is tasked with a wide range of duties, including enforcing immigration laws, investigating criminal and terrorist activity of foreign nationals residing in the United States, and overseeing the detention and deportation of unauthorized immigrants.
The other agencies listed, such as the DEA, ATF, and FBI, have different primary focuses. The DEA mainly enforces drug-related laws, the ATF deals with offenses involving alcohol, tobacco, firearms, and explosives, and the FBI handles a variety of federal crimes, such as terrorism, cybercrime, and white-collar crimes.