From a Leninist bureaucratic perspective, a paper trail is exactly what someone wants as a mid-level official: if something goes wrong a paper trail transfers responsibility to her higher-ups, reducing the chance this person becoming a scapegoat. Especially useful if someone's caught in a intra-party power struggle, in an area dealing with foreign entities where waters are muddier. Trust is very rare in the Leninist party. Not sure if the same logic works in other governments though.