1. It is called communication through letter investigation. It is one of the ways for individuals to join the party for examination. Letter to join the Party refers to sending a letter in the name of the organization to request the relevant organization of the other party to assist in the investigation and issue the investigation results when it is not convenient to directly investigate the important relationship of the person who intends to join the Party in other places.
2. Join the Party for inspection, commonly known as external adjustment, that is, going out of the province for inspection, as opposed to internal adjustment. Refers to the political censorship of party member candidates' social relations. External adjustment can be divided into two forms: signal adjustment and dispatching external adjustment, but dispatching external adjustment is the most.