Below you will see our “spectrum” color charts and the booklets they come in. These booklets are the key to nearly all of our testing methods and represent thousands of research hours spread across six countries over the course of nearly half a decade. These spectrums show you precisely how dozens of substances should react (change colors over time) when using each liquid or “spot test kit.”

The process is as simple as adding the liquid to your sample and matching your color reaction to these spectrums. This reaction occurs from the outside to the inside of the spectrum over sixty seconds. The booklets included with each kit go into much more detail including full instructions / tips / tricks to make sure you get the most precise results possible.

You can even use your smartphone to record the reaction, allowing you to replay it. We also have all of these reactions available to you in HD video form through our Bunkleaks Android app, and also Youtube.

The spectrums are captured from high definition video of lab verified pure samples reacting with each of our kits.

Bunk Police Spectrum Booklet

Bunk Police Spectrum Booklet Opened


Although these booklets may look a bit complicated at first glance – they’re actually very easy to read once you know how.

When you’re looking at one of our color spectrums or “wheels” as some people call them, what you’re actually looking at are “timelapse” images captured from video of verified pure samples reacting with the test kit featured in that booklet.

These images are HD screen shots, pulled in sequence over the course of a minute, from videos that you can actually watch on YouTube or our Bunkleaks Android App. That’s right – for every color in your booklet you can actually watch a video in real time on your phone, tablet, or TV while you’re conducting your test. We highly recommend it.

In reading the spectrum – it’s important to note that the reaction progresses from the outside to the inside. The furthest “cell” from the middle is captured at zero seconds – the exact moment when the liquid hits the sample. The second cell is captured at 1/2 second, then one second, two seconds, three seconds, four seconds, and five seconds. After five seconds we space out the timing a little bit – the next cell after the middle ring is ten seconds, then fifteen, and twenty, and so on until the end of the reaction near the molecule in the middle at 60 seconds.


Simply matching your reaction to the spectrum isn’t quite the end of what these booklets can do for you. It’s also important to read only the results that actually apply to your sample. For instance, if you’re testing MDMA… you’re not ever going to find DMT in that sample – so why look for it? We’ve made it easy to figure out which reactions matter for your sample and which ones don’t.

The first chart below is a substance symbol key. Each of the symbols represent a mainstream substance – the same substances that most people use our kits to test.

In the next image, you’ll notice lines connecting these symbols (on the right) and the adulterants (on the left.) These lines indicate a connection between the mainstream substance (symbol) and the adulterant. In the next section we’ll put all of this together to show you how this works in practice.

The Bunk Police Substance Symbols

Bunk Police Substance Key


Let’s pretend you were testing MDMA on with the Marquis spot kits and the reaction came out as green instead of purple to black like it’s supposed to be. Now we’ll go through and figure out what it could be.

So there are eight green reactions on this page and we need to figure out which one it is. We’ll start with ehtylone. If you look to the page on the left at the top you’ll see ehtylone – notice there’s a green line from ethylone down to the symbol for MDMA. This means we need to be concerned about ethylone, because we just tested MDMA. Now, which other green lines go to MDMA? That’s 2C-B and DXM. Anything else on the chart are not of interest for this test.

*Please note that FENTANYL will not react on spot kits in a useful way unless they are in VERY high concentrations and our Skylab separation kit is used. You should always test for fentanyl with our FentKit strips.*

That leaves us with just 2C-B and Ethylone because DXM does not have a green reaction. Let’s say the green reaction started out light green, and then at 15 seconds the color turned medium green. This follows the sequence for 2C-B and we now have our most likely answer.

Bunk Police Spectrum Booklet Example


“Non-reactions” are when a substance does not react at all – either staying clear or staying the original color of the test kit liquid.

If you’re testing, for example, suspected cocaine with the Marquis kit then you should not see a reaction. This is useful as many substances that can be mixed with cocaine will react with marquis, like methamphetamine and various cathinones. If you see a reaction of any kind then this means that one of these other substances is present in the sample. This applies to many other spot kits / substances and is a very effective tool for identifying mixed substances.