For more guidance on writing & researching for the law, see the library's Legal Research & Study guide.
Plagiarism is a serious concern when writing papers, and is a breach of the Honor Code, even when accidental. In order to avoid plagiarizing make sure to cite as you write. Even if you don't include full citations in a first draft, ALWAYS use quotation marks and include some sort of reference to your source for any material you quote, paraphrase, or summarize.