Will this work?

[chocobananas]

So today my friend got drug tested with a firstcheck kit. he failed. he later swapped out the urine in the failed test with his brother's clean pee. He is gonna ask his mom to send it in to the company to get confirmation and does not know if the company will test the urine in the collection bottle or the urine on the strip. Will my friend's trick work?

[Burnt Toast]

..send it in to the company to get confirmation and does not know if the company will test the urine in the collection bottle or the urine on the strip.

The specimen in the collection cup. Not the test strip. The test strip is of no use to the labs and needs to be discarded after its results have been read.