I know a prosecutor who had to investigate the statements made by the husband of a person who (presumably) had drowned themself in their pool (she used workout weights to keep herself at the bottom). The statement to be investigated: "Those were her weights. I never touched those weights!"

Now all of a sudden maybe his fingerprints are on the weights and that statement is untrue...

I also got to learn that they scoop the weights into a bucket because I guess they need to keep them submerged in water, otherwise the prints will wash off.