吴欣、龚闻莉主编的《实用警务英语拓展教程》共由12个单元组成，每单元包括情景对话、看图说话和文化背景知识三部分。每部分配有相应的口头及笔头练习。练习的设计兼具实用性和针对性，便于学习者对所学知识进行复习、巩固。

《实用警务英语拓展教程》所涉及的范围主要包括国际交流与合作、治安、刑侦、出入境管理、禁毒、交通管理、武器、集团犯罪、网络安全、公安科技、森林消防、野生动植物鉴定与保护等内容。

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