The therapist or investigator need only write down a description of the child's final disclosure, not the questioning process. But if they are exposed to some investigation techniques, they often disclose stories of events that never happened. Sometimes they can be induced to do so through a system of praise and rewards for correct answers and ridicule or penalty for wrong answers. Often, it is simply enough to ask direct questions. Once made, such disclosures can become implanted as memories in children's minds.
Memory is quite inexact, and is easily overlaid with false recollections.
The more the past is revisited, the more definite those overlaid memories become. These memories feel quite real to the child, who accepts them as valid recollections of real events in their past. MVMO trials are often war zones where expert witnesses representing both belief systems battle each other in front of the jury. Memory researchers who study children's memories are finding that ideas and memories can be easily implanted. But they realize that false memories of events that never happened can be easily created in children.