What part of the government is in charge of slavery?

Slavery is illegal in most parts of the world today, including the United States, where it was abolished by the 13th Amendment to the Constitution in 1865. Therefore, no legitimate part of the government is in charge of slavery. However, the enforcement of laws against human trafficking and modern slavery falls under various government agencies, including the Department of Justice and the Department of Homeland Security in the U.S. These agencies work to prevent and prosecute such crimes.