Mock Trial
A case. A dilemma. A courtroom. Students argue, cross-examine, and deliver a verdict using specialised legal language generated for their level.
Open App →Courtroom
- 1The courtroom layout has a clear physical logic: judge at the front centre, prosecution and defence on opposite sides, jury/audience facing the proceedings. Enforce this layout — spatial separation supports role commitment and clarifies who is speaking to whom.
- 2At B2 (3 roles), assign: Judge, Prosecution, and Defence. At C1 (4 roles), add a Witness. At C2 (5 roles), add a Jury Representative who must deliver the final verdict with justification.
- 3Role cards are essential — each student should have a printed or displayed card showing their role, relevant legal vocabulary, and argument responsibilities. The vocabulary is role-specific: prosecution and defence do not share the same keyword lists.
- 4The ethical dilemma element distinguishes Mock Trial from standard debate: the case has no clean answer. Students should feel genuine uncertainty about the right verdict — this moral ambiguity is what produces the most sophisticated spoken justification.
The Teaching Logic Behind Mock Trial
Mock Trial generates a complete structured case for a courtroom simulation. The output includes a case title, a factual summary, a central ethical dilemma, a list of legal vocabulary appropriate to the CEFR level, thematic keywords, and a set of fully described roles. Legal vocabulary count scales with level: 5 items at B2, 8 at C1, 10 at C2. Role count scales similarly: 3 at B2, 4 at C1, 5 at C2.
Two case types are available: Real-life (based on actual documented historical or contemporary cases with identifying details changed) and Fictional (invented scenario built around a specific ethical dilemma type). Real-life cases carry authority and context; fictional cases allow ethical precision — the dilemma can be crafted to be genuinely 50/50 with no obvious right answer.
An optional specific case field allows teachers to name a historical or literary case — a constitutional challenge, a famous miscarriage of justice, a fictional courtroom drama — and the AI generates structured Mock Trial content around that specific case. This makes Mock Trial directly useful for literature, history, or ethics units.
Why It Works
Legal language is a complete functional register
Hyland (2004) demonstrates that specialist genres — academic writing, legal discourse, scientific reporting — have stable structural and lexical features that can be explicitly taught. The legal genre is particularly rich for L2 teaching because it has formal vocabulary, strict procedural sequences, and clear pragmatic functions: prosecution argues X, defence argues Y, judge adjudicates. Teaching this genre develops formal register awareness across all professional domains.
Moral reasoning requires precise language
Habermas (1990) argues that communicative rationality — reasoning together in language — is the mechanism through which ethical disagreements are resolved in democratic societies. The ethical dilemma in Mock Trial creates the condition for communicative rationality: students cannot resolve the case through force or authority; they must persuade through the quality of their arguments.
Formal role play develops register-shifting capacity
Goffman (1959) identifies role performance as a fundamental social act that requires moment-to-moment linguistic calibration. Playing a legal role — judge, prosecution, witness — requires sustained formal register maintenance across an extended interaction. This is a distinct and high-value skill from conversational code-switching.
Step-by-Step in Class
Generate the case
Select a CEFR level (B2, C1, or C2), choose Real-life or Fictional case type, and optionally name a specific case. Review the output before class — familiarise yourself with the ethical dilemma and check that the legal vocabulary is appropriate for your students' level.
Assign roles and distribute materials
Assign roles based on class size and level. At B2: 3 roles. At C1: 4 roles. At C2: 5 roles. Additional students can serve as jury members who vote at the end. Give each student their role description and legal vocabulary list. Allow 10 minutes for preparation — roles should never be spontaneous at this level.
Run the proceedings in sequence
Opening statements → Evidence presentation → Cross-examination → Closing arguments → Jury deliberation → Verdict. The judge manages the floor and time. Prosecution and defence must each use at least 5 of the legal vocabulary items in the correct context. The teacher may pause proceedings to address vocabulary questions.
Verdict and reflection
The jury (or class) delivers a verdict with written justification. After the formal verdict, exit the role play and debrief: 'Was this case genuinely 50/50?' and 'What language did you hear that you would not normally use?' The post-trial discussion is often where the most useful metacognitive language learning occurs.
How to Set It Up for Different Levels
Generates a fictional case with a clear ethical dilemma (whistleblower, property dispute, professional misconduct) with 5 legal vocabulary items, 3 roles, and simplified role descriptions. B2 vocabulary emphasises functional legal nouns and verbs.
B2 learners can maintain formal register in prepared speech but lose it under cross-examination pressure. Fictional cases with clear ethical dilemmas reduce background-knowledge anxiety, allowing students to focus on register maintenance rather than factual accuracy.
Generates a real-life case (historical environmental lawsuit, famous civil rights case) with 8 legal vocabulary items, 4 roles including a witness, and detailed role descriptions. Includes cross-examination questioning frames.
Real-life cases at C1 level carry contextual richness that fictional cases cannot replicate — students must argue within a defined factual record, which forces the precise qualification language of legal discourse: 'the evidence suggests', 'it is contested that', 'no evidence exists for'.
Teacher specifies a well-known historical or literary case. AI generates structured Mock Trial content around that specific case with 10 legal vocabulary items, 5 roles, and an ethical dilemma framing that cuts beneath the surface facts.
Specifying a named case at C2 integrates language learning with content knowledge — students engage with real history or literature through the legal lens. The ethical complexity of major historical cases produces the most sophisticated C2-level moral reasoning language.
Ways to Extend the Game
Verdict Justification Writing
After the verbal verdict, each jury member writes a 100-word written justification using exactly 3 of the session's legal vocabulary items. The written record tests whether students can transfer spoken legal register into formal written prose — a distinct and higher-demand skill.
Retrial with Switched Roles
Run the same case a second time with prosecution and defence switched. Students who argued 'guilty' now argue 'not guilty'. This position switch is cognitively demanding and produces significantly different language choices — students discover which arguments they found most persuasive by how hard it is to counter them.
Witness Hot Seat
The witness role is put in the 'hot seat': for 5 minutes, any student from either side can direct one question to the witness. The witness must answer in character, using legal register language. The unscripted Q&A format produces the richest spontaneous formal language use.
Legal Vocabulary Sentence Mining
After the trial, students review the transcript (or their notes) and identify every instance where a legal vocabulary item was used. They classify each usage as 'correct', 'approximate', or 'incorrect' and propose corrections for approximate and incorrect usage.
Pair It With
Class Clash
Class Clash builds the team-based debate skills that Mock Trial requires at a lower-formality level — students who have practised opposing-team argument in Class Clash arrive at Mock Trial with the debate structure internalised and can focus on legal register.
Persuasion Arena
Persuasion Arena develops the confidence-betting mechanic that mirrors jury deliberation — the decision to commit to a position under uncertainty is the same cognitive-social act whether the arena is a quiz show or a courtroom.
You're Wrong
You're Wrong provides the foundational argument structure — pro/con, keywords, supporting reasons — that Mock Trial scales into a full legal simulation with roles, register, and procedural sequence.