吳欣、龔聞莉主編的《實用警務英語拓展教程》共由12個單元組成，每單元包括情景對話、看圖說話和文化背景知識三部分。每部分配有相應的口頭及筆頭練習。練習的設計兼具實用性和針對性，便於學習者對所學知識進行復習、鞏固。
《實用警務英語拓展教程》所涉及的範圍主要包括**交流與合作、治安、刑偵、出入境管理、禁毒、交通管理、**、集團犯罪、網絡安全、公安科技、森林消防、野生動植物鋻定與保護等內容。

Unit One International Cooperation
Part I Situational Dialogues
Dialogue 1 A phone call to cancel an appointment
Dialogue 2 Received at an airport
Dialogue 3 A visit to the National Central Bureau (NCB) of the: I nterpol in Beijing
Dialogue 4 Case discussion at the International Criminal Court (ICC)
Part II Picture Talking
Part III Cultural Notes
The Interpol Global Complex for Innovation
Unit Two Police Weapons
Part I Situational Dialogues
Dialogue 1 Talk on police pistols
Dialogue 2 In a police station weapons room
Dialogue 3 In the interrogation room
Dialogue 4 Tear-bomb and plastic bomb
Part II Picture Talking
Part III Cultural Notes
Police Equipment and Duty Belt
Unit Three Traffic Control and Safety
Part I Situational Dialogues
Dialogue 1 Drunk driving
Dialogue 2 Speeding
Dialogue 3 Vehicle stop
Dialogue 4 Police patrol
Part II Picture Talking
Part III Cultural Notes
Florida Car Seat Laws
Unit Four Entry and Exit
Part I Situational Dialogues
Dialogue 1 Visa extension at the Division of Aliens Administration
Dialogue 2 Going through the customs
Dialogue 3 A phone call to the Aitport Information Centre
Dialogue 4 An interview about drug smuggling
Part II Picture Talking
Part III Cultural Notes
Related Regulations of Visas
Unit Five Drug Enforcement and Detecting
Part I Situational Dialogues
Dialogue 1 Security check at the airport
Dialogue 2 Discussion on drugs
Dialogue 3 Talk on drug abuse
Dialogue 4 A drug case interrogation
Part II Picture Talking
Part III Cultural Notes
World Drug Report 2013 (excerpt)
Unit Six Criminal Investigation
Part I Situational Dialogues
Dialogue 1 Response to homicide crime
Dialogue 2 Ways to bring a person to justice
Dialogue 3 Talk on criminal science and technology
Dialogue 4 A visit to Criminal Investigation Division in Oakland City
Part II Picture Talking
Part III Cultural Notes
Forensic Science
Unit Seven Interrogation Methods and Technology
Part I Situational Dialogues
Dialogue 1 A talk between witness and police officer
Dialogue 2 Reporting a robbery
Dialogue 3 Interrogation on a suspect
Dialogue 4 A discussion on interrogation technology between an officer from Interpol and a Chinese police officer
Part II Picture Talking
Part III Cultural Notes
Police Interrogation Methods and Technology Today
Unit Eight Personal Identification
Part I Situational Dialogues
Dialogue I Illegal residency
Dialogue 2 Evidence-collecting at the scene
Dialogue 3 At an interrogating room
Dialogue 4 A discussion between two students in police academy on ways of identification
Part II Picture Talking
Part III Cultural Notes
Pros and Cons of Biometric Technologies
Unit Nine Economic Crime
Part I Situational Dialogues
Dialogue 1 Interrogation of selling fake LV handbags
Dialogue 2 Receiving a call of reporting tax evasion
Dialogue 3 Talking about corruption
Dialogue4 Money laundering
Part II Picture Talking
Part III Cultural Notes
Anti-Money Laundering
Unit Ten High-Tech Crimes
Part I Situational Dialogues
Dialogue 1 Invasion of websites
Dialogue 2 Stealing and selling information by entering sites
Dialogue 3 Cracking the password
Dialogue 4 The cyber threat
Part II Picture Talking
Part III Cultural Notes
High-Tech Crime
Unit Eleven Forest Firefighting
Part I Situational Dialogues
Dialogue 1 A visit to Forest Fire Office
Dialogue 2 A discussion between two officials
Dialogue 3 A telephone conversation
Dialogue 4 An introduction of the IFSEC South Africa
Part II Picture Talking
Part III Cultural Notes
Chile Buries Seven Firefightcrs
Unit Twelve Wildlife Protection
Part I Situational Dialogues
Dialogue 1 A dialogue on wildlife conservation
Dialogue 2 A talk on wildlife conservation
Dialogue 3 An interview on wildlife crime
Dialogue 4 Wildlife trade
Part II Picture Talking
Part III Cultural Notes
Wildlife Smuggling
Keys
Appendix I Useful Phrases
Appendix II English-Chinese Translation
Appendix III Chinese Police Rank System