sele: they train us volunteers to collect samples, and we're collecting the core of the tree. and the core, they're going to do a chemical composition to later on be able to match it, see if it's possible to match it to the leaves. hopefully it will lead to help stop poaching. renee: going to insert this here to fit the core. and there we have the core. insert it. gisele: ok, this goes in our desiccant bag. lancaster: and now just unpackaging the wood core, sitting in a bed of desiccant. so we remove the core from the straw. i cut a small portion off just the end. it's that small disc. from there, we make fine slivers out of the sections in order to maximize what the sample can do. we use direct analysis in real time, time-of- flight mass spec to look at the chemotypes of trees. a just like a fingerprint can identify individual humans, a chemotype can identify individual species. if the information is validated and stands in consensus, it wils to provide information to law enforcement, where they can determine if something has been done illegally, whether that's import wood sh