Urinalysis

First of all, when do you find urine at a crime scene?

Anyway, me and my partner thought it was pretty obvious from the beginning which pee sample matched the sample from the cellar.  You could tell from just looking at it.  Then the absolute gravities were way different.  Then one pH was way different from the other two.  And one was cloud after heating and the other two weren't.  So, this would be very useful evidence since it clearly shows differences between samples and there are so many different tests for differences.  This will be helpful for the mission if we come across mysterious pee on the mission.