2 Metaphors for detections

In the present instance, there is evidence that a very large number of persons were concerned, and detection finally becomes, therefore, a certainty.

The fructification of this tree, so called from the river, which was named after Captain Huon Kermadie, who commanded L'Esperance under the order of Admiral D'Entrecasteaux, never having been seen, its detection was matter of much curiosity to Mr. Cunningham, who diligently examined every tree that had been felled.

2 Metaphors for  detections