The polygraph Malaga
The polygraph Malaga
The polygraph, also known as a lie detector, is an instrument that simultaneously records changes in respiration, cardiovascular activity and the galvanic skin response in order to assess the truthfulness of a person's answers. In Málaga, El Polígrafo carries out these tests with calibrated Stoelting CPS Pro equipment, led by an examiner accredited by the European Polygraph Association and holding a PhD in Psychology. Each appointment has three phases: a pre-test interview, the test itself and a results report. The test lasts between 60 and 120 minutes and the full session between 2 and 3 hours, depending on the complexity of the case. Prices start from €350. We serve clients in La Cala del Moral (Málaga) and across Spain.
Field accuracy (APA)
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Polygraph tests performed
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Clients
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Polygraph meaning
Polygraph meaning
Highly accurate instrument for measuring and recording the fluctuation of the main physiological signals that may be altered by questions that the subject would like to avoid.
The polygraph continuously records three signals of the autonomic nervous system —respiration, cardiovascular activity and the galvanic skin response— while the person answers a set of questions prepared in advance. It does not «detect lies» on its own: it measures physiological reactions that a qualified examiner interprets by comparing the relevant answers with control questions. Its value therefore depends as much on the instrument as on the examiner's training and the protocol used.
Polygraph tests
At the polygraph test We seek the truth and in order to achieve it, it is necessary to follow a series of steps, each one more or equally important than the previous one.
Evidence
How reliable is the polygraph?
The polygraph is not infallible, but with validated techniques and an accredited examiner its accuracy is around 85-90%.
The reliability of the polygraph is not 100%. The American Polygraph Association reports an aggregate accuracy of 87% (range 80-94%) across validated techniques, rising to 89% for single-issue exams; the National Academies review (2003) estimated about 89% in field studies. Independent reviews are more cautious and warn about possible false positives, so the result should be treated as supporting evidence —never as the sole arbiter of guilt or innocence— and always depends on the examiner's training, how the questions are framed and the subject's condition.
Sources: American Polygraph Association; National Academies of Sciences (2003); Office of Technology Assessment, U.S. Congress (1983); American Medical Association, Council on Scientific Affairs.
| Study or review | Reported accuracy | Source |
|---|---|---|
| Field examinations | 92-98% | APA (compiled research) |
| Laboratory simulations | 80-81% | APA (compiled research) |
| Aggregate accuracy (validated techniques) | 87% (range 80-94%) | American Polygraph Association |
| Single-issue exams | 89% | American Polygraph Association |
| Field review | 89% (ROC) | National Academies (2003) |
| Independent review | 83-85% | OTA · U.S. Congress (1983) |
| Guilt classification | 75-97% (with false positives) | AMA, Council on Scientific Affairs |
The polygraph Malaga
If you want to know the absolute truth, this is your chance.
In companies
Both private and public companies use this technique as a lie detector, interpreting these fluctuations in response to certain questions.
In the judicial field
It is used as a technique to ensure the veracity of the testimony, especially in cases where there are no witnesses and only this statement is available. For example, in cases of domestic violence, when only the alleged aggressor and the alleged victim were in the same room.
In the private sphere
The causes are very diverse, the main one being the infidelity of a partner, knowing whether to continue betting on a relationship when you have doubts about something. But it is also used to control young people who have certain addictions, family robberies, etc...
Areas of use
The polygraph by area of use
What the polygraph is used for, what report is delivered and what validity it has in Spain.
| Area | Typical use | Type of report | Validity in Spain | Indicative price |
|---|---|---|---|---|
| Private / couple | Infidelity, doubts in the couple, addictions or family theft | Oral or written report | Private use; no evidentiary value in criminal proceedings | From €350 |
| Company / HR | Personnel selection and lie detection in the workplace | Oral or written report | Internal investigation; no evidentiary value in criminal proceedings | From €350 |
| Judicial / expert | Truthfulness of testimony in cases without witnesses | Expert report (charts, scoring and conclusions) | With an expert report, admissible as evidence in civil or labour cases | €500–1,000 |
Indicative prices; the quote depends on the number of topics and the type of report. Accompanied by an expert report, the polygraph may be submitted as evidence in civil or labour proceedings, where the judge assesses it freely.
The Test
Our working method
01 · Contact
Brief outline of the problem in order to be able to cover as many of your needs as possible to resolve your doubts.
02 · The interview
The analysis of the issue is deepened, seeking the elaboration of the most precise and appropriate questions.
03 · The test
After attaching the electrodes and sensors, the agreed chain of questions is asked on at least three occasions.
04 · The report
Once the test has been completed and the results have been extracted, they may be given orally, by interview, or in a written report.
On video
The polygraph, on video
One minute to see how we work.
Before the test
It all starts with a call or a message: tell us what you need to verify and we confirm the plan, date and conditions — no obligation.
On the day of your appointment, before a single sensor is attached, we run the pre-test interview: we review your condition (rest, medication, anxiety) and every question that will be asked. Nothing comes as a surprise.
The test only begins with your signed consent. See the full process step by step.
Services
Polygraph test price
A standard polygraph test in Málaga costs €350. Expert reports for court use range from €500 to €1,000 depending on the complexity of the case and the number of topics to be examined.
The fee covers the full service, not just the time with the sensors: the pre-test interview, the polygraph test, the analysis of the charts and the results report.
The price varies with the type of report (basic or a court-ready expert report), the number of topics to examine, and whether the test is carried out at our premises, with travel, or for several people (group rate).
We don't charge per question or change the fee based on the outcome: the cost is the same whatever the result, as a guarantee of impartiality.
See the full breakdown by plan and book your appointment on the pricing page.
Qualifications & accreditations
Accredited polygraph examiner training
Experience backed by verifiable qualifications — no small print.
Our examiner holds an official polygraph examiner qualification, with training accredited by the European Polygraph Academy and Fextor Polígrafos. Click each document to enlarge it.
Training certificate
Certificate
University of MalagaPhD in Psychology, psychopedagogue, psychophysiologist and psychologist, forensic psychologist and criminologist, registered member of the Official College of Psychologists of Eastern Andalusia. Listed on the court-appointed expert roster of the College of Psychologists of Eastern Andalusia. Associate polygraph examiner at the European Polygraph Association. Lecturer at the University of Malaga, Faculty of Psychology.
Academic degrees
Bachelor's Degree in PsychopedagogyUNED
Bachelor's Degree in PsychologyUniversidad de Málaga
PhD, University of MalagaSobresaliente Cum Laude
Master in Forensic PsychophysiologyEuropean Polygraph Academy
Master in Forensic PsychologyISFAP
Master in CriminologyISFAPWhat our clients say
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