R v Hendrie (1985) 37 SASR 581 a man found his wife, beaten, raped and strangled, in the bedroom of her home. There were signs of a struggle in the bedroom, but no signs of a struggle anywhere else. This was puzzling, because it meant the assailant had gotten into the house, and taken the victim into the bedroom, without causing her any fear or any need to struggle. Police arrested an interior decorator for her murder, and the prosecution sought to lead evidence that, in the days before the murder, the victim told her husband she had arranged to meet the decorator for the purpose of obtaining a quote.
This evidence was clearly hearsay, but it would provide a solid explanation for how the accused got into the bedroom with the victim.
The evidence was admitted, on the basis that it was a statement of her contemporaneous thoughts. The statement was not part of the facts, but it clearly indicated her state of mind at the time of the facts.