United States v. Hansen (262 F.3d 1217): Case Brief and How to Write One

A case brief is a short, structured summary of a court decision that you write for yourself. It strips a long opinion down to the parts you actually need: what happened, what the court was asked to decide, what it decided, and why. Law students brief cases because reading a decision once rarely sticks. Rewriting it in your own words forces you to separate the facts that mattered from the ones that did not, and it gives you a one-page map you can glance at when a professor cold-calls you.

Before going further, clear up a name collision that trips up a lot of students. There are at least two well known cases called United States v. Hansen. The one at citation 262 F.3d 1217 was decided in 2001 and deals with criminal environmental violations at a chemical plant. A completely separate case, United States v. Hansen, 599 U.S. 762 (2023), is a Supreme Court decision about a federal statute that criminalizes encouraging illegal immigration. Same surname, different courts, different facts, different law. There is also a smaller trap in the 2001 citation itself: it comes from the Eleventh Circuit, so if a syllabus labels it a Ninth Circuit case, slow down and confirm which decision is actually assigned. This page briefs the real 2001 case and then teaches the method, so treat everything below as a model you learn from and rewrite, not a page you copy.

Case Brief: United States v. Hansen, 262 F.3d 1217 (11th Cir. 2001)

Use this as a worked example of how the pieces of a brief fit together. When you write your own, pull the details straight from the published opinion and phrase them yourself.

Facts

The Hanlin Group operated LCP Chemicals, an industrial plant in Brunswick, Georgia that made caustic soda, hydrogen gas, hydrochloric acid, and chlor-alkali bleach. The site sat next to tidal marshes and a creek. The manufacturing process generated hazardous waste, including elemental mercury, mercury-contaminated sludge, chlorine-contaminated wastewater, and highly caustic material. As the parent company slid toward bankruptcy in the early 1990s, the plant’s wastewater treatment fell behind, waste accumulated on cellroom floors and in storage areas, and workers were exposed to mercury and caustic chemicals. The plant repeatedly exceeded the discharge limits in its Clean Water Act permit and violated hazardous waste rules.

Three men connected to plant management were charged: Christian A. Hansen, Randall W. Hansen, and Alfred R. Taylor, who held roles ranging from senior corporate leadership to plant manager and project engineer during the relevant period.

Procedural History

The three defendants were tried and convicted in federal district court on multiple counts, including conspiracy to commit environmental crimes under 18 U.S.C. section 371, Clean Water Act violations, Resource Conservation and Recovery Act (RCRA) violations including knowing endangerment, and failure-to-report violations under CERCLA. They received prison sentences and fines and appealed both their convictions and their sentences to the United States Court of Appeals for the Eleventh Circuit.

Issue

The appeal raised several questions rather than one. Among them: Was there sufficient evidence that each defendant held enough authority and knowledge to be criminally responsible for the violations? Was the expert testimony about worker health hazards properly admitted? Did the jury instructions correctly state the reasonable doubt standard, the responsible corporate officer doctrine, and the knowledge required for the environmental crimes? And did the district court understand its authority to depart from the sentencing guidelines?

Holding

The Eleventh Circuit affirmed. It upheld the convictions and the sentences, rejecting each of the defendants’ challenges to the evidence, the expert testimony, the jury instructions, and the sentencing decisions.

Reasoning

On the evidence, the court held that a reasonable jury could find each defendant had the authority and the awareness the statutes require. It pointed to specific proof: one defendant directed how waste tanks and wastewater flow were handled, another received daily operational reports and misled the board about compliance, and a third kept environmental oversight duties even after stepping down as plant manager. Sampling data and employee testimony established that the waste was hazardous, that storage rules were broken, and that the defendants knew of the dangers through inspection reports, agency citations, and worker complaints.

On the law, the court explained how the responsible corporate officer doctrine works under the Clean Water Act, where the statutory definition of a covered person includes responsible corporate officers. That doctrine let the government prove a discharge violation and the defendant’s knowledge without proving the defendant personally opened a valve. At the same time, the court was careful about the knowing endangerment charge under RCRA. It required proof of actual knowledge that conduct was substantially certain to cause danger, while making clear that this knowledge can be shown through circumstantial evidence such as reports, position, and deliberate steps to avoid learning the truth. Reading the jury instructions as a whole, the court found they conveyed the correct standards even where one sentence, viewed alone, was imperfect. Finally, it held the sentencing judge understood the power to depart from the guidelines and simply chose not to.

The takeaway that a brief should capture in a line or two: corporate and management responsibility for environmental crimes turns on authority plus knowledge, and that knowledge can be proven with circumstantial evidence rather than a confession.

How to Brief a Case Yourself

Now use the model above to build your own. The most common framework is IRAC, and a fuller version called FIRAC that adds facts at the front.

• F, Facts. State what happened and who did what, in a few sentences. Keep only the facts the court actually relied on. If a detail would not change the outcome, leave it out.
• I, Issue. Frame the legal question the court had to answer, usually as a yes-or-no question. If the case has several issues, list them separately so your reasoning stays organized.
• R, Rule. Name the statute, doctrine, or standard the court applied. In the Hansen brief above, that includes the responsible corporate officer doctrine and the knowledge requirement for knowing endangerment.
• A, Application. Show how the court connected the rule to the facts. This is the analysis, and it is the part professors care about most, because it is where the reasoning lives.
• C, Conclusion. State the holding and the disposition, such as affirmed, reversed, or remanded.

A few habits make briefs faster and more useful. Read the opinion once for the story before you write anything. On the second pass, find the holding first, because knowing the outcome tells you which facts were doing the work. Write everything in your own words. Copying the court’s sentences produces a brief you can hand in but cannot learn from, and it is the surest way to end up staring blankly when you get called on. Keep the whole thing to a single page so you can scan it in seconds.

One last point, and it is the reason this page exists. A brief is a learning tool, not a submittable assignment. Turning in someone else’s brief, whether a classmate’s, a commercial summary’s, or this one, runs straight into honor codes and originality checks that treat copied work as misconduct. Read the actual published opinion, brief it in your own voice, and the case will stay with you long after the reading is done. That is the whole point of doing it yourself.