Jonny5,

The LASD's primary focus is on drug use, nothing else. If you have never used drugs, they still may throw a curve at you for drug use.  The LASD likes to DQ for drug use and their failure rate is about 60%.

You should study TLBTLD and get very familiar with the information. The LASD has a high failure rate as they use the poly as a background screening device. If you look at this link
http://www.antipolygraph.org/documents/lasd-polygraph-pamphlet.pdf 

you can read the polygraph pamphlet put out by the LASD

Good Luck

Fred F.

My understanding of a control question, is a question that has no relevance to a specific event.  Is this correct?  So a question beginning with, "have you ever" is an example of a control question?  Are they the same as "comparison" questions?

see i dont understand why they make a big deal about stuff that you did when u were underage... i understand if u have misdameanors and what not but i have a clean background... but my problem is i have tried marijuana and also stolen something from my job when i was young... so because of that im not going to pass?

But when taking a preemployment polygraph, with some formats you are EXPECTED TO LIEl when asked a control question.

Also, polygraphers KNOWINGLY LIE to the applicant to trick him/her into volunteering information.

TC

Quote:


If I experimented with marijuana a few times when i was 19 I would not admit to it now, because as sure as nuts the system will hold it against you.

When in doubt, chicken out and deny, deny, deny.

polytek wrote on Aug 18^th, 2008 at 1:04pm:


Control questions can begin with "have you ever..."  As in "have you ever told a lie to a loved one?"  (It's assumed everyone has.)

If there is just one or two questions that have you confused as to whether they are control questions or relevant questions there is an easy way to determine with high likelihood of success which they are.

It involves the pretest phase where the questions are reviewed.  Simply call attention to the question that you are not sure of; ask for clarification of it.  The polygrapher will answer your question, and then he'll call attention to another question, as if to see if you understand it correctly.  If the first question that you asked about was a control then the question the polygrapher will bring up will be a relevant; and if the first question that you bring up was a relevant, the one the polygrapher brings up will be a control.  So, if you have already identified the question the polygrapher brings up as a control question, you can be sure that the first question that you mentioned and were confused about is a relevant, and vice versa.

This works because polygraphers try very hard to make sure that the magnitude of the control and relevant questions will appear approximately the same to (uninformed) subjects.  But, whenever a question has attention called to it, that tends to enhance the response the subject produces on it, whether they respond honestly or not.  To counter this effect, the examiner must equally enhance an opposing question so that they'll be comparing apples to apples.

Obviously, this will only work if there is only one or two questions out of the lot that you're unsure of.  If you're confused about half of them, you probably won't be sure of the status of the second question that is brought up and so will have gained nothing.