Professional Polygraph testing
Lie Detector & Polygraph Services in Washington
When the truth matters, get answers.
Hamre PI provides confidential lie detector and polygraph testing for individuals, attorneys and qualifying investigative matters. Whether you're facing a personal dispute, suspected infidelity or a situation involving potential wrongdoing, a professional polygraph examination may help address important unanswered questions.
All inquiries are confidential.
30+ Years Experience
Decades of investigative and polygraph experience.
Confidential & Discreet
Sensitive matters handled with professionalism.
Flexible Testing Options
Discuss available testing locations and arrangements.
Available 24/7
Contact Hamre PI when you need answers.
Polygraph Testing Services
Professional lie detector testing for personal and investigative matters.
A polygraph test, commonly known as a lie detector test, measures physiological responses while a person answers a structured series of questions. At Hamre PI, we understand that people seek polygraph testing for many different reasons. Some are trying to address concerns in a relationship, while others are dealing with suspected theft, allegations or legal disputes. We take the time to understand the circumstances, identify the questions that need to be addressed and determine whether a polygraph examination is appropriate.
Infidelity & Relationship Concerns
Theft & Missing Property
Criminal Investigations
Civil & Legal Disputes
Personal & Family Matters
Business-Related Investigations
Polygraph Testing Services
How does a lie detector test work?
A polygraph examination records several physiological responses while an individual answers a series of carefully structured questions. These measurements can include respiration, cardiovascular activity and changes in skin conductivity. The examiner evaluates the recorded responses in relation to the questions asked. A polygraph does not directly detect lies; it measures physiological activity that may be associated with a person's responses. A properly conducted examination involves more than simply attaching sensors and asking questions. Preparation, question development, testing procedures and professional interpretation all play important roles.
1
Pre-Test Consultation
The examiner discusses the purpose of the examination, the circumstances surrounding the issue and the questions that need to be addressed.
2
Question Development
The questions are reviewed and structured to focus on the specific issue being investigated. The examinee has an opportunity to understand the questions before testing begins.
3
Polygraph Examination
The examinee is connected to the polygraph instrumentation, which records physiological responses throughout the examination as the questions are presented.
4
Evaluation & Results
The examiner evaluates the collected data and discusses the findings in the context of the examination.
Experience Matters
Professional testing. Confidential service.
Hamre PI brings more than 30 years of investigative experience to clients seeking answers.
We understand that every situation is different. We take the time to understand your concerns, explain the testing process and determine whether a polygraph examination is an appropriate option.
30+ Years
of Investigative Experience
Individuals, Attorneys & Businesses
Investigative support for a wide range of clients.
Pacific Northwest
Local knowledge. Regional reach.
24/7
Available when situations can't wait.
FAQ
What is a polygraph test?
A polygraph test, also known as a lie detector test, is a method of testing a person's physiological responses to questions to determine whether or not they are telling the truth.
How does a polygraph test work?
During a polygraph test, the examiner will attach sensors to the test subject's body to measure their physiological responses, such as heart rate, blood pressure, and breathing. The examiner will ask a series of questions, including control questions, relevant questions, and comparison questions, and will analyze the subject's physiological responses to determine whether or not they are being truthful.
Are polygraph tests accurate?
While polygraph tests are not 100% accurate, they are considered to be a valuable tool in determining the truthfulness of individuals. The accuracy of a polygraph test can be influenced by a variety of factors, such as the experience and training of the examiner, the quality of the polygraph equipment, and the behavior and demeanor of the test subject.
What types of cases can benefit from a polygraph test?
Polygraph tests can be useful in a variety of cases, including criminal investigations, employment screenings, civil litigation, and personal matters, such as infidelity investigations or family disputes.
How long does a polygraph test take?
The length of a polygraph test can vary depending on the complexity of the case and the number of questions being asked. In general, a polygraph test can take between one and three hours to complete.
Can a polygraph test be used as evidence in court?
The admissibility of polygraph test results as evidence in court varies by jurisdiction. In some cases, polygraph results can be introduced as evidence in court, while in others they cannot.
Is a polygraph test invasive?
Polygraph tests are not considered to be invasive, as they only measure the subject's physiological responses to questions and do not involve any physical or medical procedures.
Can polygraph results be faked or manipulated?
While it is possible for a test subject to manipulate their physiological responses to questions, experienced examiners are trained to detect such attempts and can take steps to ensure the accuracy of the test results.
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Ready to schedule a lie detector test?
Contact us to discuss your circumstances, ask questions about the testing process and determine the next step.
All inquiries are confidential. No obligation.