Professional Lie Detector Tests in Southern Maryland & DC
Professional polygraph examinations starting at $350. Confidential lie detector tests for law enforcement, attorneys, and private clients throughout Southern Maryland, Washington DC & Virginia.
Why Trust Newcomer Polygraph Services LLC
Professional credentials you can verify
About Our Polygraph Examination Process
At Newcomer Polygraph Services LLC, we combine nearly two decades of experience with cutting-edge Lafayette LX 7000 computerized polygraph technology to deliver accurate, defensible results. Our examination process is designed to be thorough yet respectful, ensuring both the integrity of physiological data and the dignity of the examinee.
90-Minute Examination
Each polygraph examination takes approximately 90 minutes and follows standardized protocols established by the American Polygraph Association.
Three Physiological Indicators
We monitor cardiovascular activity, respiratory patterns, and galvanic skin response using our computerized system for precise measurements.
24-Hour Reports
Detailed reports delivered within 24 hours, suitable for legal proceedings and trusted by law enforcement agencies.
What to Expect During Your Examination
We begin with a detailed pre-test interview to understand your case specifics and address any concerns. During the actual examination, our certified examiner interprets physiological responses using proven methodologies. Our computerized system provides precise measurements that ensure objectivity and accuracy.
Our Success Rate & Reliability
We achieve conclusive results in 95% of examinations. When results are inconclusive, it's typically due to medical factors, anxiety, or medications—never due to examiner error. We document all influencing factors and provide clear explanations in our detailed reports.
Why Law Enforcement & Legal Professionals Choose Us
Our reputation is built on objectivity and defensibility. We don't tailor results to client expectations—we follow the science. This approach makes our reports admissible in legal proceedings and trusted by law enforcement agencies. Our formal partnerships with Capitol Heights PD and Edmonston PD reflect nearly two decades of consistent, reliable service.
Services for Every Need
- Pre-employment screening for security, law enforcement, and corporate positions
- Criminal investigations and post-incident examinations
- Internal affairs and employee integrity investigations
- Civil dispute resolution and family law matters
- Private examinations for personal peace of mind
Flexible Scheduling & Professional Conduct
We conduct 98% of examinations at client locations for maximum convenience. Emergency and urgent exams are available. Our examiners maintain strict professionalism—no intimidation, no judgment, just objective science.
Comprehensive Polygraph Services
Professional examinations for law enforcement, legal professionals, corporations, and private clients.
Pre-Employment Screening
Comprehensive polygraph examinations for law enforcement agencies, government contractors, and security firms hiring for sensitive positions.
Criminal Investigations
Support for law enforcement and legal professionals in criminal cases requiring truth verification and credibility assessment.
Internal Affairs
Confidential examinations for administrative inquiries, post-incident investigations, and allegation-based matters.
Civil Disputes
Objective polygraph services for civil litigation, family law cases, and personal matters requiring documentation.
Corporate Investigations
Internal theft, fraud, and misconduct investigations for organizations requiring trust and integrity verification.
Private Examinations
Respectful, confidential services for individuals seeking truth verification in personal matters.
Why Law Enforcement and Legal Professionals Trust Us
Our law enforcement background and commitment to professional excellence make us the trusted choice for polygraph examinations in Metro Washington DC.
Law Enforcement Background
Owned by a retired police officer who understands investigative needs, legal standards, and the importance of defensible results.
Nearly Two Decades of Experience
Certified polygraph examiner since 2007 with extensive experience in criminal, civil, and pre-employment examinations.
Objective & Defensible Results
We never tailor results to client expectations. Our examinations use standardized protocols and produce conservative, legally defensible conclusions.
Trusted by Local Departments
Preferred vendor for Edmonston Police Department and Capitol Heights Police Department.
95% Conclusive Rate
Professional examinations using Lafayette LX 7000 computerized equipment with industry-leading accuracy.
24-Hour Report Turnaround
Fast, professional reporting suitable for legal review and investigative action.
Strict Confidentiality
All examinations conducted with the highest level of discretion and privacy protection.
Flexible Scheduling
Emergency and weekend services available to meet urgent investigative needs.
Frequently Asked Questions
Quick answers about our professional polygraph examination services in DC, Maryland & Virginia.
Polygraph examinations start at $350. Pre-employment screenings are $350, criminal investigations are $400, and civil/legal matters are $450. Private examinations start at $350. Volume discounts available for agencies.
Ready to Schedule an Examination?
Contact us today to discuss your polygraph examination needs. We work with law enforcement agencies, legal professionals, corporations, and private clients.
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