Law students are accustomed to being presented with a topic, examining all sides of it, and zealously advocating their point of view or interpretation. When asked to do research in the sciences or social sciences, they're confronted with an entirely different academic tradition. Scientific literature is very different from legal literature - instead of discussing and analyzing a topic and coming to a conclusion about it, scientific articles describe studies and report their results. While these articles often suggest some possible interpretations of the study results, scientific research is cautious; it doesn't advocate for or against specific points of view, just describes what happened.
If you haven't done science or social science research before, it's easy to get confused when trying to read a scientific article. This page will give you a few pointers on how to identify the key points of a study and incorporate them into your paper.