There is all different types of boots, both for male and female. My wife has some "high fashion" boots, they are bright red and the outsole looks like the tread you would see on a jeep or an off road vehicle. I don't think you could slip while wearing those things even if you were walking on packed ice with a fresh layer of mist on it. I wish I had tire tread that knobby on my pickup !
She also has a pair of cowboy boots with a rubber traction tread on them, same as a mans work boot would have. I make her wear them when we are out cutting firewood or hanging out in rattlesnake country. She has a pair of rain boots, same thing. Snow boots, same thing. Traction tread.
Anyway, I think a lot more telling would be the size of the boots. The widths, the size and the tread design. I'm sure the FBI has an entire database dedicated just for that purpose, identifying the manufacturer and where they were sold.
The question is, who was wearing them ? Did someone leave them sitting on the back porch last Sunday morning caked with mud ?
Was someone seen washing them down with a water hose on Monday ? Have a favorite pair of hiking boots gone missing from inside the home ? Those are the questions the people inside that park are going to have to answer, none of us can.