Los Angeles polygraph
818 883-6969

Lie-detector tests saturday and Sunday

Since 1988

More than 10,000
completed tests

Did you know?

During a polygraph exam, we are recording microscopic changes to blood volume, skin conductance, upper breathing and lower breathing, as the examinee responds to a rehearsed 10-question script.

The examinee needs to sit very still. Answering yes or no with his/her mouth only, not with any head movement. Answering all questions at the same volume.

Up to four key questions from the client will be used as the heart of the exam. Be sure that each question is no more than 19 words long each, that the questions have no 'and' or 'or' in them, and that there are no 'softening' words (we don't say 'affair' or 'sleep with'; we say 'have sex with' or 'have sexual contact with').

The computer instantly and accurately scores the charts in between each test, so we will know which questions they did good on and did bad on, before we go on to the next test chart 5 minutes later.

If all guidelines and instructions are followed, we can expect in the area of 95% accuracy.
  Grogan polygraph  
How to get lowest price on polygraph test in los angeles



Lie-Detector Test In Los Angeles

$145 and up Polygraph
Examinations in the Los Angeles area

Here is a simple site to
explain what to expect,
and how to make
lie-detection work for you!

Polygraph in Los Angeles for $145

Be sure that:
1 . . . your exam will be done on a modern $6000 computerized polygraph instrument, NOT on an old antique 'roll of chart paper with 4 pens'. You want the accuracy and sensitivity of a computerized instrument, and you want a computer to blindly score the test charts (you do not want a human to be doing the scoring, someone who can miss something or can be biased to be too easy or too hard).

2 . . . the accuser/client (spouse or victim) would be allowed, if desired, to quietly monitor the entire exam from an out-of-examinee's-view area or from a remote area.

3 . . . your examinee will be tested 3 times in a row, using standard 10-question charts (best for accuracy); with 20 seconds in between each question it means he/she will actually be 'on the polygraph' for 3 five-minute periods, with a short break in between each.

4 . . . you are permitted to arrive with the up to 4 key questions you would like to have asked during the exam. Have them written out, put plenty of thought into them. If you think that your situation needs more than 4 questions to cover it, speak to your examiner about this ahead of time.


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Helping to get the truth for you

Polygraph is the world's most
accurate lie-detection tool.

In virtually every city in the United States, you can not become a police officer without
first passing a polygraph examination. Continual improvements in polygraph technique
and instrumentation has increased the ability to pinpoint truth and lies better than just a decade ago.

See behind-the-scenes
information about a
lie-detector test
in Los Angeles

(this video is less
than one minute long)

But not all have the same training & experience.
Contact us for a free consultation to see the difference.
We have been testing since 1988.
We have been testing for more than 35 years.
We have tested more than 11,000 persons.
We have more than 1,000 TV/media appearances.

Our staff of experienced lie-detection professionals are available to serve you days, nights, and weekends.

Los Angeles lie detector test for infidelity

We proudly serves businesses and the public
of the Los Angeles county area, including:

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Lie detector polygraph test in Los Angeles