Carol Park
The article also claims that the evidence of knots was irrelevant anyway, as climbers and yachtsmen were so common in the area. The other piece of evidence related to another rock taken from the lakebed, which had supposedly come from the Parks' roof. However, the prosecution eventually admitted that Westmoreland green slate had been worked in the area for hundreds of years, and could have come from anywhere. The Herald also mentions the fact that the police files from the original missing persons inquiry into Carol Park had gone missing themselves, but does not draw any conclusions from this.