Gumshoes

[Sonia]

A detective or priate investigator.

[Sonia]

[Gumshoes] are a version of [gumboots] (also known as wellingtons, wellies, or [rain boots]) that are shorter in length and resemble more of a shoe than a boot. They are designed to keep the foot dry in wet conditions that are mild rather than harsh.

[Tanya Shivari]

informal for detective (= someone whose job is to discover facts about a crime)