L.I.E.S. Linguistic Interrogation Expert Services was established in 2001 with the vision and commitment to produce professional training programs which develop the skills of investigators to obtain accurate and reliable information from people, which is the primary source of evidence and information obtained during most criminal investigations. Our instructors are highly trained seasoned detectives who share a passion for interview and interrogation, statement analysis, detecting deception and finding the TRUTH.

Our training programs reflect our philosophy that investigators are gatherers of facts and information and should be focused on finding the TRUTH within every investigation. To ensure that you gather the most accurate and reliable information during your investigations, you must make sure your training is the absolute best and that it is supported through academic research as well as effective application within the field.

"When you need to know the TRUTH, your training should be from LIES" 

Our Instructors

Our instructors have many years of experience in criminal investigations involving major crimes and complex cases, and they are all very experienced and highly skilled within the field of interview and interrogation.

Our instructors have also also participated in academic research and studies, which included a variety of cultures and nationalities, relating to interviewing techniques and strategies, credibility assessments, detecting deception and statement analysis techniques.


Wesley Clark is the President of LIES, LLC. He is a former Sergeant with the Connecticut State Police Department, retiring in 2009 after more than twenty-two years of public service. Throughout the majority of his career Mr. Clark was assigned to the Major Crime Squad as both a Detective and as a Detective Sergeant and was responsible for the investigation, supervision and direction of numerous homicides, robberies, kidnappings, sexual assaults, suspicious deaths, police-involved shootings, crimes against children, financial and organized crimes among many others. Mr. Clark also was assigned for approximately two years as an Investigative Sergeant within the Internal Affairs Unit under the Office of Professional Standards. Mr. Clark is a POST Certified Instructor and has conducted training courses throughout the United States as well as having presented at training seminars and academic conferences in Canada, England, Italy and the United States as well. Mr. Clark is a strong advocate for continuous personal and professional development and for the advancement within the fields of investigative interviewing and criminal interrogation and for the alignment of academic research to the training received by investigators within the field. Mr. Clark has also partnered with various agencies and participated in research on detecting deception, cognitive interviewing, credibility assessment, interviewing through interpreters, and statement analysis techniques.

Sergeant James Kline is a 20-year veteran of the Connecticut State Police. He was assigned as a Patrol Trooper from 1992 until 1999 working a variety of shifts and assignments. In 1999 he was assigned as a Detective with the Major Crime Squad where he investigated many robbery, assault, kidnapping and homicide cases. He was also an active member of the Charlotte Hungerford C.A.I.T Team, which is a multi-disciplinary team of experts specializing in the investigation of abuse and neglect of children. Through that team Sergeant Kline assisted with and investigated numerous physical and sexual abuse cases involving children as victims as well as suspects. In 2004 he was promoted to Sergeant where he was assigned as a Patrol Supervisor at Troop- G in Bridgeport, CT. In 2004 Sergeant Kline was selected to supervise a special task force initiated by the Governor’s Office to investigate Corruption within the Department of Motor Vehicles. In 2007 Sgt. Kline was assigned back with the Major Crime Squad as a supervisor and was responsible for the investigation and supervision of homicides, robberies, kidnappings, sexual assaults and other complex and sensitive investigations. Sergeant Kline is a certified P.O.S.T instructor and has been studying Statement Analysis, Interview Interrogation and Cognitive Interviewing since early 2000. He has been an instructor for L.I.E.S- Linguistic Interrogation Expert Services since 2006 and has taught throughout the United States and in Canada. Sgt. Kline has also been actively involved within research and academic studies on interviewing techniques and deception.

Maggie Pazian is an internationally accredited trainer in the science of nonverbal communication and behavior, emotion perception and deception detection. Maggie has more than ten years of experience in both field and academia. She specializes in the field of emotion recognition, micro-expressions, body language, FACS and cues to deceit; creating dynamic skill building programs for private enterprise, not-for-profit and federal organizations. The focus of her training is to translate the insights developed from cutting edge research on emotion, create applications and develop training for those interested in improving their communication and people reading skills. Maggie launched her career as a consultant in nonverbal behavior while working with Dr. Mark Frank, the leading researcher in facial expression, interpersonal deception and behavioral observation. Maggie has led efforts on projects with the Defense Advanced Research Projects Agency, Office of Naval Research, National Science Foundation and the Transportation Security Administration. Maggie is also a lead trainer for the Institute of Analytic Interviewing and Paul Ekman International plc and is a guest lecturer for FLETC. Maggie is President of VisualEmotion LLC, established in 2006 at which time her company was contracted by the Department of Homeland Security for its expertise in FACS (Facial Action Coding System). VisualEmotion also provides FACS coding services to academic researchers, government organizations and market researchers seeking to pursue insights in emotion and facial expression. Maggie appeared on the Discovery Channel show Monsters and Mysteries in Alaska in March of 2010 and has co-authored several papers and presentations on deception detection.

Languages: Fluency in English and Polish; conversational French.





Mission Statement

"Our company is dedicated to providing the most current and effective training programs available for the investigator, which are based upon solid academic research as well as the practical and effective application of the techniques within the field."

Our training courses include interview and interrogation training, cognitive interviewing, and statement analysis along with related courses and programs designed to help investigators detect deception and lies as well as identify truthfulness, as both skills are critical to reaching accurate conclusions within investigations, in essence...finding the truth! Partner with us on your pursuit of the truth and sign up for our newsletter below!

In 2014 we are launching The Lie Boat! A 5 day/4 night cruise with 6 instructors and 12 training sessions focused on lies, lie detection and getting to the truth within interviews and interrogations! Check it out under our training courses or at http://www.thelieboat.com

Our Purpose and Values

Our primary purpose is to enhance the investigator's ability to develop rapport, facilitate communication, extract more accurate information, detect deception and obtain the TRUTH from every investigative inquiry.

Free Newsletter

Free Newsletter & Videos!

Stay informed with the latest information, training and research relating to investigative interviewing, criminal interrogation, statement analysis, detecting deception, credibility assessment and related areas!

ALSO, as click HERE for free videos relating to Investigative Statement Analysis including:

  • 10 of the most frequently asked questions from students throughout the years.
  • 10 things you SHOULD know about Investigative Statement Analysis.
  • 9 crime-specific videos about what to look for and what insights Investigative Statement Analysis can provide the investigator on these types of cases.

Available Training Courses

Here is an overview of some of the available training courses through LIES, LLC. Click the link at the bottom of the box for details on the courses

Training Courses for Investigators:

  •  Investigative Statement Analysis for Patrol & First Responders
  • Witness Interviewing for First Responders
  • Foundations of BELIEF; Proper Framework for Effective Interviewing
  • Situational Awareness/Mindfulness within Investigative Interviews
  • Intelligent Interviewing; Social & Emotional Intelligence within Investigative Interviews
  • Investigative Statement Analysis Workshop
  • Interviewing Psychology; Deception, Persuasion and Interrogation Strategies
  • Investigative Statement Analysis; Truth through what they S.A.I.D.
  • BELIEF Interviewing Model
  • Cognitive Interviewing; Improving Witness Memory and Recall
  • Tactical Interviewing & Detecting Deception
  • Interviews of Post-Shooting and High-Stress Events

Corporate and Business Training:

  • Truth, Deception & Effective Communication
  • Language & Lying
  • Bodies & Baselines
  • Communicate to Connect
  • Custom training programs available as well to meet specific needs!

We can conduct our training classes on-site to minimize travel expenses for attendees and to maximize the amount of personnel available to benefit from training. Agencies who host training courses receive FREE training for their officers! Contact us for details on setting up training at your agency. Click "Read More" to learn about our training programs and to see upcoming training courses. 
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Contact Us For More Information

Phone: 860-628-1880  

Fax: 814-284-3979

E-Mail: This email address is being protected from spambots. You need JavaScript enabled to view it.