The term 'Bank Heist Unit' refers to a specialized law enforcement unit that is responsible for investigating and apprehending criminals who have committed bank robberies. The acronym THOU stands for Tactical Hazardous Operations Unit, which is the name of one such unit in the United States. This unit is composed of highly trained officers who are equipped with the latest technology and tactics to investigate and apprehend bank robbers. They work closely with local, state, and federal law enforcement agencies to ensure that bank robbers are brought to justice.