Can one use fecal samples after they have been passed by the subject?
Absolutely. One does not need an Anal Probe for this, just a zip-lock bag. Advantages of this are that samples can easily be collected without the subject’s knowledge. The disadvantage is that one only learns about the subject at one moment in time, typically 24 hours before the passing of the sample. Also the sample may not be fresh and may only yield partial data. When collecting passed samples it is helpful to keep them at body temperature.
