Master the Art of Police Interviewing
AI-powered training for the PEACE model. Practice suspect and witness interviews with realistic AI responses, get instant assessment, and build confidence before the real thing.
Free and open-source. For educational and training purposes only.

*All names, characters, and cases shown are entirely fictional and created for training purposes only.
Features
Realistic Interview Practice
PIT simulates suspects and witnesses with distinct personalities, emotional states, and resistance levels. The AI adapts its responses based on your interview technique, creating genuinely challenging practice scenarios.
Adaptive AI Suspects
Suspects react to your approach — build rapport and they open up, pressure them and they clam up or become hostile.
Witness Interviews
Practice cognitive interviewing techniques with AI witnesses who have varying recall and emotional responses.
Voice-Enabled
Speak naturally using your microphone. PIT transcribes your questions in real-time and can respond with synthesised speech.

PEACE Framework Training
Built around the official PEACE model used by UK police forces. PIT teaches and tests your understanding of Planning & Preparation, Engage & Explain, Account, Closure, and Evaluation.
Structured Learning
Work through each PEACE phase with guided exercises and knowledge checks.
Instant Assessment
After each interview, receive detailed feedback on your technique, covering rapport, questioning style, and PEACE compliance.
PIP Level 1 Aligned
Training content drawn from Professionalising Investigation Programme Level 1 interview standards.

Private and Locally Run
PIT runs entirely on your own machine using Docker. No cloud services, no data leaving your computer, no subscriptions. Your training sessions are completely private.
Zero Cloud Dependencies
Everything runs locally — your interview practice never leaves your machine.
GPU Accelerated
Runs on NVIDIA GPUs for fast, fluid responses. Supports multi-GPU setups for the best experience.
Free and Open Source
Built by a former police officer, for educational and training purposes. No paywalls, no hidden costs.

Six Distinct Modes
Training Modes
Choose from six specialised training modes, each designed to develop different interview skills and PEACE framework knowledge.
Suspect Roleplay
Interview AI suspects with distinct personalities, offence backgrounds, and resistance levels. Practice rapport-building, account gathering, and challenge techniques.
Witness Roleplay
Conduct cognitive interviews with AI witnesses who have varying recall abilities, emotional states, and perspectives on events.
PEACE Knowledge
Test your understanding of the PEACE framework with knowledge-based questions covering all five phases of the interview model.
Assessment
Submit your interview approach for detailed AI assessment covering technique, PEACE compliance, rapport, and questioning quality.
Scenario Presentation
Review complex interview scenarios and discuss strategy, legal considerations, and tactical approaches before entering the interview room.
Special Procedures
Learn the protocols for interviewing vulnerable witnesses, juveniles, and other special category interviewees under PACE and ABE guidelines.
523
Total training scenarios across all six modes,
covering the full PIP Level 1 interview curriculum.
The Framework
The PEACE Model
PIT is built around the PEACE framework — the structured interview model used by UK police forces. Every training mode reinforces these five phases.
Planning & Preparation
Review case materials, identify objectives, plan your questioning strategy, and prepare the interview environment.
Engage & Explain
Build rapport with the interviewee, explain the interview process, and establish the ground rules clearly.
Account
Obtain the interviewee's account through open questions, active listening, probing, and appropriate challenge.
Closure
Summarise key points, give the interviewee a chance to add anything, and explain next steps in the process.
Evaluation
Reflect on the interview's effectiveness, assess the account against evidence, and identify further actions.
Simple Process
How It Works
Four steps from launching PIT to receiving expert-level feedback on your interview technique.
Choose a Mode
Select from suspect roleplay, witness interview, PEACE knowledge testing, assessment, scenario discussion, or special procedures.
Begin Your Interview
Start the interview naturally. Type or speak — PIT captures your questions and approach in real-time.
AI Responds Realistically
The AI adapts its behaviour based on your technique. Build rapport and it cooperates; use pressure and it resists.
Receive Assessment
Get detailed feedback covering PEACE compliance, questioning quality, rapport-building, and areas for improvement.