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Research chemicals and swab tests

ooh.shiny

ooh.shiny

Bluelighter
Joined
Feb 25, 2010
Messages
109
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Melbun
I should preface this by saying this post is not about asking about ways to avoid getting detected while driving affected. Swab tests are fantastic- no one should be driving high. But from what I can gather, you can still get a positive two days later. This is obviously pretty shitty, but one would assume there would be no reason to arouse suspicion two days after (and clearly not high) consuming. Therefore, no reason to test.

So my question. Will research chemicals (of any kind) show up? Or more importantly, will research chemicals show up two days later?

Also, another question- Does anyone know they test for MDMA? I've seen the swabs they use, which have amphetamine/ thc on them. Obviously MDMA is going to get an amphetamine reading, but looking at police stats, they distinguish between speed and ecstasy. How does this work?
 
To the best of my knowledge it is only cannabis that can be detected at up to 2 days (even this is rare) because thc is fat soluble and stays in your system for a very long time. Amphetamines on the other hand are metabolized much faster and will not show positive readings after the effects of the drug have warn off.

The swab tests can't distinguish between methamphetamine and MDMA, but it will detect both as they are both amphetamines. You would then have to submit a blood sample for further testing.

As for RC's I doubt that they would be picked up, but maybe amphetamine analogues and such could lead to a positive amphetamines test and further blood analysis could then show what RC you were on. P_D is your man for that answer...

Check out this thread
http://www.bluelight.ru/vb/showthread.php?t=322386

edit:

I wish they would test for cocaine. Why does the middle class have to be subject to drug screening when driving, but the upper class coke heads can drive around all day without a care in the world. I don't believe anyone should be driving under the influence, that is far from my point, I just believe fair is fair. We wouldn't want to be busting doctors, lawyers and politicians now would we :\
 
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The roadside saliva tests can only detect very recent pot smoking (like in the previous couple of hours) because THC does not hang around in saliva like other drugs do. The tests in Queensland also do distinguish between MDMA and methamphetamine. There is no blood test required for confirmation in Queensland, it's purely based on the saliva sample.

No idea about various research chems testing positive for an already illegal drug. There may be false positives with the initial tests, but I'm pretty sure in Qld the results are confirmed by GCMS, which would mean a false positive would be unlikely.
 
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Jake: DOx chems may test positive for amphetamines, but this is unlikely - as MDMA wasn't in the original test - and is now, they tested for it without telling drivers then added it in when the 'staggering' amount of people tested positive.
 
In Queensland, the roadside tests check for the *presence*, in any amount, of MDMA/ice or THC. They acknowledge that you might not even be slightly affected at the levels it shows up on the test.

However, if they think you're "under the influence" of anything, whether it's cocaine or legally prescribed benzos or whatever, they can still haul you off to a hospital and get your blood tested. If there's enough of the substance for a doctor to say s/he thinks you'd be under the influence, they can charge you anyway, even if it's not something they do the roadside tests for.

Kinda interesting that it's not an offence to have smoked a bit of pot yesterday but it's an offence to be driving today when even the cops admit it's probably no longer affecting you :\
 
Jake: DOx chems may test positive for amphetamines, but this is unlikely
Click to expand...

It depends entirely on whether the substance in question or it's metabolites are suitable substrates for the antibody.
 
Conscious21 said:
In Queensland, the roadside tests check for the *presence*, in any amount, of MDMA/ice or THC. They acknowledge that you might not even be slightly affected at the levels it shows up on the test.

However, if they think you're "under the influence" of anything, whether it's cocaine or legally prescribed benzos or whatever, they can still haul you off to a hospital and get your blood tested. If there's enough of the substance for a doctor to say s/he thinks you'd be under the influence, they can charge you anyway, even if it's not something they do the roadside tests for.

Kinda interesting that it's not an offence to have smoked a bit of pot yesterday but it's an offence to be driving today when even the cops admit it's probably no longer affecting you :\
Click to expand...

That's true, the police can make you have a blood test if they think you are under the influence of anything while driving, but still you will not test positive to THC in a blood test unless the THC is actually in the blood: eg you are currently intoxicated. THC and its metabolites don't hang around in blood for days or weeks, this is only the case for urine testing where the metabolites can be detected up to three months later in heavy daily smokers.

And again, saliva testing for THC will not detect someone who smoked last night, it will only detect very recent use.
 
phase_dancer said:
It depends entirely on whether the substance in question or it's metabolites are suitable substrates for the antibody.
Click to expand...

That's what I was going to say; Shulgin conducted a study on DOB (I think) distribution in the body and found that it accumulates in the lungs prior to moving to the brain, which he interpreted as meaning the lungs could metabolize it into th e active chemical, which may or may not be picked up by the drug tests.
 
Flexistentialist said:
That's true, the police can make you have a blood test if they think you are under the influence of anything while driving, but still you will not test positive to THC in a blood test unless the THC is actually in the blood: eg you are currently intoxicated. THC and its metabolites don't hang around in blood for days or weeks, this is only the case for urine testing where the metabolites can be detected up to three months later in heavy daily smokers.

And again, saliva testing for THC will not detect someone who smoked last night, it will only detect very recent use.
Click to expand...

You seem to know what your on about, and this has puzzled me for ages.

Could you back that up with a link possibly?

Im particuarily interested in roadside saliva testing for THC and potential time's after dosing that can register a positive result. Any noteworthy differances between casual and daily smokers would also be usefull =)
 
L3inad said:
You seem to know what your on about, and this has puzzled me for ages.

Could you back that up with a link possibly?

Im particuarily interested in roadside saliva testing for THC and potential time's after dosing that can register a positive result. Any noteworthy differances between casual and daily smokers would also be usefull =)
Click to expand...

See if you can still find the results of the testing the nimbin hemp embassy did a few years back. Their results were inconclusive but it's the kind of info your asking for.
 
There a fair bit of research on THC detection in oral fluids. Here's a few:

Evaluation of the Cozart DDSV test for cannabis in oral fluid.
...

Given the results, the DDSV device was considered as an acceptable tool to detect cannabis abuse in oral fluid within a period of 2-3 hours after smoking.
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This one is very good and one of the researchers is named E.J. Cone, hehe:

Relationship of Delta 9-tetrahydrocannabinol concentrations in oral fluid and plasma after controlled administration of smoked cannabis.
...

The first oral fluid specimen, collected from one subject at 0.2 h following initiation of smoking, contained a THC concentration of 5800 ng/mL (GC-MS). By 0.33 h, the THC concentration in oral fluid had fallen to 81 ng/mL. From approximately 0.3 h through 4.0 h, the mean (+/- SD) THC ratio of oral fluid to plasma THC concentrations was 1.18 (0.62) with a range of 0.5 to 2.2. Within 12 h, both oral fluid and plasma THC concentrations generally declined below 1 ng/mL. RIA analyses of oral fluid specimens for six subjects demonstrated the same pattern of initial high levels of contamination immediately after smoking, followed by rapid clearing, and a slower decline over 12 h.
Click to expand...

Nimbin Hemp Embassy did their own testing with the device, and their results were the same. Check out the research they did here: Testing the Drugwipe Twin

Here's a couple more:
Salivary THC following cannabis smoking correlates with subjective intoxication and heart rate

Drug Testing in Oral Fluid
 
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