Guo Han, a former White House senior strategic adviser and “national teacher in black”, was arrested in New York on the 20th, local time, on suspicion of crowdfunding fraud. For many Americans, the news, in addition to the topic nature of the US election, has also drawn attention to a little-known federal law enforcement agency: the U.S. Postal Bureau of investigation (uspis). < p > < p > < p > the Washington Post reported that on Thursday morning local time, US Postal Bureau of investigation agents with guns boarded a yacht docked in New York’s Long Island Strait and arrested Bannon there. The U.S. Postal Bureau of investigation is a federal law enforcement agency under the U.S. Postal Department. Its responsibility is to protect the security of the U.S. Postal System and crack down on any criminal activities using postal services. The postal service was directly involved in the investigation and arrest because of the possible use of the postal system in Bannon’s alleged fraud. The agency’s law enforcement personnel, peacetime tasks also include national post office security, as well as escorting important postal materials. According to the article, this is the first time that many Americans realize that behind the amiable postman in the neighborhood, there is a law enforcement agency with a history longer than that of the United States, armed, involved in investigation and cracked many major cases. According to the home page of the U.S. Postal Bureau of investigation, the establishment of the agency can be traced back to 1775 (a year before the declaration of independence was issued by Washington). Benjamin Franklin, the founding father and postmaster general of the United States, appointed William Goddard as postmaster general to examine postal numbers and investigate the activities of stealing letters and mailing funds. < p > < p > with the development of the “westward movement” in the United States, postal lines across the East and West often encounter theft and robbery. Franklin set up a special postal law enforcement team, after several reorganizations, became the current U.S. Postal Bureau of investigation. < p > < p > historically, U.S. Postal personnel have investigated criminals such as mail robber Billy boy, Charles pound, the protagonist of Ponzi scheme, Oswald, a marine who assassinated former President Kennedy (rifle department mail order), and Ted kacinsky, the “king of parcel bombs”. However, due to the fact that the Federal Bureau of investigation (FBI), the tobacco, alcohol, firearms and explosives Administration (ATF) and other federal law enforcement agencies are more well-known, the U.S. Postal Bureau of investigation is rarely known in reality, so an important public relations task of the agency is to “remind people that we exist”. In short, the U.S. Postal Bureau of investigation has the right to participate in the investigation and arrest of any case involving postal services, mainly involving abduction of children, cyber crime, drug smuggling and financial crimes. < / P > < p > according to the data, the U.S. Postal Bureau of investigation carried out 5759 arrests in 2019, of which nearly 5000 were final convictions, most of which were mail theft, fraud and the collection and delivery of prohibited goods. From 2010 to 2019, the number of drug mail cases soared, with the agency arresting 19000 people and seizing $18 million worth of drugs. However, the real highlight of the U.S. Postal Bureau of investigation may be the arrest of ban Nong, which said in a statement on the 20th that ban Nong and three other people were suspected of using the “we build the wall” online fund-raising activities and raised more than $25 million. Money laundering and embezzlement of hundreds of thousands of money through forged invoices. In a statement, Gary Barksdale, head of the U.S. Postal Bureau of investigation, acknowledged the cooperation of the New York Southern District Prosecutor’s office and said it would be committed to detecting and investigating any activities that defraud others for profit. But he did not disclose more details of the case.