Use of Field Test Kits in Identifying Drugs
It is suggested that law enforcement officers utilize field test kits. It is important to know that field test kits are presumptive only. For conclusive analysis, the substance must be sent to the State Law Enforcement Division (SLED) lab or another approved laboratory for testing by a chemist. Test kits may be included in the totality of evidence available to an officer when establishing probable cause.

Because there are many different types of test kits available the user should read the directions and be familiar with use of the test kit. If a field test kit is used, make sure that its use and results are documented in official reports and warrants if applicable.

With regards to pharmaceutical drugs, using the Physicians’ Desk Reference book, commonly called a PDR, can presumptively identify them. Local pharmacies, hospitals , and the Poison Control Center can also be used when attempting to identify a pharmaceutical drug. These sources of preliminary identification, however, do not replace chemist examination at an approved lab (SLED). For conclusive identification, all drugs, including pharmaceutical drugs, must be sent to SLED (or an approved alternative) for chemical tests.

On the street the officer should apply the totality of the information and evidence available to him/her in determining what drug is present and the probable cause needed for an arrest.


Field Test Kits:  place cursor over photo for details   

Examples of field test kits.  Be sure to read directions.  Marijuana and test kit

(click on image for larger view)

 Place a small amount of marijuana into kit.  Break ampules and allow reagents to contact marijuana  Observe reaction and document results