This chapter talks about writing for professionals in criminal justice contexts. For the justice professional, one’s immediate audience is usually a series of superiors going up the chain of command, from the immediate supervisor to the supervisor’s supervisor, and so on. The basic unit of communication in writing begins with the word, but in fact, words mean very little unless enlivened by the context the sentence creates. The chapter suggests to use the Glossary of Writing and Writing Errors for more details and examples. Unfortunately, the English language contains almost as many exceptions to rules as it does rules to follow. Some verbs have evolved with unusual conjugation patterns. Plagiarism is unethical according to all professional work standards. The English language provides multiple ways for us to express ourselves; repeating others’ words or ideas without citation is avoidable.