Identifying Illicit Drug Residue with a Surface Drug Test Kit

Drugs of Abuse
Illicit drugs are a major societal concern as they can cause a range of negative consequences, from health problems to criminal activity. One of the challenges in addressing this issue is detecting the presence of drugs in various environments, such as homes, workplaces, and public spaces. Surface drug test kits have emerged as a useful tool in this regard, enabling rapid and accurate identification of illicit drug residue on surfaces. In this article, we will explore how these kits work and how to use them effectively.
Did you know? Forensic Test Labs charge thousands of dollars to process a sample for unknown drugs and can take many weeks before providing a result, but now detecting drug residue with a surface drug test kit can cost as little as $6, and they work great. We have used them in different situations and identified many other drugs of abuse in minutes. Do it yourself at home without these prohibitive costs and in a fraction of the time. Best of all, the analysis does not damage the article you are testing.
The Art of testing for Drug Residue: This guide will help you identify suspect Illicit Drug Residue, powder, and pills; If you see powder or a suspicious capsule around the home or the office, we will show you how to identify what was found with our in-depth guide using a surface drug test kit.
Where can I use a Drug Residue Surface Test?
A drug residue surface test can be used in various settings where there is a need to detect the presence of drug residues on surfaces. Some common applications of drug residue surface tests include:
- Law Enforcement: Police officers can use these tests to detect drug residue on surfaces during drug raids or investigations.
- Workplace Safety: Employers can use these tests to monitor their workplace for drug use, especially in safety-critical industries like transportation, construction, or manufacturing.
- Drug Treatment Facilities: Drug treatment facilities can use these tests to ensure that their patients are not using drugs while under treatment.
- Sports Organizations: Sports organizations can use these tests to detect drug use by athletes and maintain a level playing field.
- Forensic Investigations: Forensic investigators can use these tests to detect drug residue on surfaces at crime scenes.
- Home Drug Testing: Parents or guardians can use these tests to detect drug residue on surfaces in their homes to monitor the drug use of their children or other family members.
- Q. Can I test powders or residue powder?
Yes, Pentests screen and detect many illicit and prescribed drugs. - Q. Can I test liquids?
Yes, place a tiny amount of the Pentest liquid on the test paper and view the result. - Q. Can I test solid tablets?
Yes, cut the tablet in half and wipe the center of the cut half onto the test paper and test. - Q. Can I test encapsulated substances?
Yes, open the capsule and place a small amount of powder onto the test paper. If it’s a pellet-type substance, then crush it before testing. - Q. Can I test Paraphernalia?
Yes, Items suitable for analysis include Bongs, pipes, aluminum foil, bags, vape pens, and syringes.
How to use a surface test kit to identify suspect powder, pills, and residue on paraphernalia.
Surface drug test kits typically consist of a test paper that is designed to react with drug residue on surfaces. The test paper and a chemical reagent react with the drug residue to produce a visible color change. The color change is then compared to a color chart provided with the kit to identify the type of drug present.
The most common types of drugs that can be detected using surface drug test kits are cocaine, heroin, methamphetamine, fentanyl, benzodiazepines, and marijuana. However, some kits are capable of detecting other drugs, such as MDMA and LSD.
It is important to note that surface drug test kits are not foolproof and may produce false positives or false negatives. False positives occur when the test indicates the presence of drugs when there are none. This can occur if the test is contaminated or if there is a substance present that reacts with the chemical reagent in the kit. False negatives occur when the test fails to detect the presence of drugs when they are present. This can occur if the surface has been recently cleaned or if there is not enough drug residue present to produce a positive result.
With a simple test, detecting drug residue can be straightforward. If you suspect drugs are hidden in the home, take a look at an article we wrote giving hints of where to look.
What equipment do I need to Identify Illicit Drug Residue?
A simple, low-cost surface drug test is all that’s needed—manufactured by Mistral Security, these products detect and Identify illicit drug substances. They use a Colorimetric technique that identifies drugs of abuse instantly. The test’s chemical reaction causes a color reaction from red, blue, green, purple, and various colors in between to indicate the substance identified.
Each sealed aluminum foil pouch includes a pen-shaped tube with liquid chemicals, two test papers, and instructions with a color comparison chart. The instructions make it easy for you to compare your test against the chart, which will allow you to identify the drug discovered quickly.

Procedure for Detecting Illicit Drug Residue
Surface drug tests require no previous knowledge and take just a few minutes to detect and identify narcotics. The benefit of utilizing a residue test from Mistral Security is that it allows you to identify drugs without destroying the evidence.
To use a surface drug test kit, follow these simple steps:
- Select the appropriate test kit for the drug you want to detect. Make sure to check the expiration date on the kit before use.
- Prepare the surface to be tested by wiping it down with a clean, dry cloth to remove any visible debris.
- Open the test kit and remove the test paper and pen containing a special chemical.
- Rub the test paper on the surface to be tested, applying moderate pressure to ensure that any drug residue is collected. Identifying substances for analysis is quite simple, wipe a suspect area with a surface test kit paper or wipe the material you wish to test with the respective test paper. (see detailed instructions below).
- Place the test paper on a flat surface.
- Holding the pentest upright, squeeze the plastic pen in the middle to break the glass separators inside. (Press firmly to feel a crunching sensation) (Figure 1) hold your finger over the pen tip and shake for ten seconds to mix the chemicals (Figure 2).
- Remove the cap while pointing the tube away from you.
- Point the tube tip down and empty a few drops of the reagent onto the sample area’s test paper. (Figure 3)
- Wait for the prescribed time period for the test to develop. This can vary depending on the specific kit being used.
- Observe a color change. Compare the color on the test paper with the color chart included in each Pen. Below are photographs of what the result can look like.
Detailed Instructions Using a Surface Test Paper for Identifying Illicit Drug Residue.
Remove or peel back the silicon backing to the white test paper; try not to remove it entirely. Bend back halfway, then use the exposed area to wipe the suspect residue. If the backing is removed, place your thumb and forefinger to the edge where the part number is at the top edge.
Swipe the test paper over the suspect area (Figure 4), apply a small amount of liquid onto the test paper (Figure 5), observe the color change on the test paper (Figure 6), and compare the color with the included reference chart. See the example chart below.
In conclusion, surface drug test kits are a useful tool for identifying the presence of illicit drug residue on surfaces. They are easy to use and can produce results quickly. However, it is important to remember that they are not infallible and should be used in conjunction with other methods of drug detection, such as laboratory testing. By following the instructions provided with the kit and taking care to avoid contamination, surface drug test kits can be an effective tool in the fight against illicit drugs.
What Technology Do these Tests Use When Identifying Illicit Drug Residue?
The technology is called Colorimetry and is a scientific technique used to determine the presence of a target chemical through a chemical reaction that results in a color change. Colorimetric test kits are available for analyzing a wide variety of unknown narcotic substances. The tests are usually specific and well suited for presumptive testing of compounds with suspected identity. Results are typically compared to a color key in the test kit. Detection sensitivity is typically in the parts-per-thousand range—a one-time use with a reagent and reactive test paper for each target substance.
What are the benefits of using a Colorimetric test for Identifying Illicit Drug Residue?
There are many benefits to using Multiple Drug Detection and Identification tests. The two major benefits are instant results and low cost. Only one application is required. The test does not destroy the evidence. They detect substances invisible to the human eye, no special disposal procedures are necessary, and no special training is required. They are safe to use.
Benefits of using a D4D and C&H combination.
The D4D pentest is a Multiple Drug Detection & Identification device designed to identify narcotic drugs by color reactions. When using this test, it will quickly highlight if a drug has been found.
When you are unsure what substance you’ve found and want to get a better idea of what it is, the manufacturer suggests using a D4D and C&H combination. This is the most popular option because together, they can detect over forty different substances. In summary, screen the unknown substance first with the D4D to see if there is a color reaction, and then confirm and identify it with the C&H.
The general screening test D4D can detect over two dozen drugs with one application. The multiple drug detection and identification C&H pentest can positively identify over ten different drugs. The C&H pentest will confirm many of the drugs screened by the D4D pentest. Both pentest can analyze pills, powder, trace residues, and liquid. The analysis does not destroy the evidence, and no special disposal procedures are required. They are safe to use with quick results and no previous knowledge of testing.
Drugs detected using a combination of the D4D and C&H Pen Tests. | |
Marijuana. | Buprenorphine. |
Bath Salts. | Methadone. |
K2 Spice. | LSD. |
Phencyclidine (PCP). | Methamphetamine (Meth). |
Amphetamine. | Ecstasy. |
Heroin. | Ketamine and More. |
Opiates. |
Drug | Sensitivity: ng/mm2 |
Cocaine | 2548 |
Phenobarbital | 318 |
Crack | N/A |
Methamphetamine | 127 |
Ketamine | 12739 |
Ephedrine | 64 |
Heroin | 255 |
Methadone | 127 |
LSD | 64 |
Buprenorphine | 3000 |
Here are examples of surface drug tests for Identifying Illicit Drug Residue.
In conclusion, these tests require no knowledge of testing. The process takes just a few minutes to develop. The result produces a color to identify the drug discovered; compare the color from the analysis with the enclosed color chart within each test kit.
Using the D4D test with either COCA or C&H, it is possible to detect and identify many unknown illicit substances used by homeland security, airports, the military, the DEA, and mail carriers.