There are some ways to cheat such a test using synthetic urine or human hair - making blood testing the most effective.

I assume you use urine in the tanning process, right?

It was more effective if they did use urine instead of water.

Using urine, hydrogen production is 332% more energy efficient than using water.

Ring-tailed lemurs have also been shown to mark using urine.

This smelled as if he had used urine as the liquid ingredient.

When these failed he turned to vegetable and animal material, finally using human blood and urine.

We have programs with the military that are using urine.

They mark their territories using various scent glands, or urine, depending on the particular species.