The enclosed dataset comprises Raman spectra of cocaine hydrochloride (HCl) and its common adulterants measured using the handheld Agilent Resolve spatially offset Raman spectrometer equipped with 830 nm laser wavelength (Handheld Spectrometer, Portable SORS Raman Technology | Agilent). Adulterant included acetaminophen, baking powder, benzocaine, caffeine, calcium carbonate, custard powder, dextrose, Kendamil milk powder, lactose, lidocaine, levamisole, Nanny milk powder, Nido milk powder, procaine HCl, starch, talc and vanillin.

The enclosed dataset comprises near infrared (NIR) spectra of cocaine hydrochloride (HCl) and its common adulterants using the Viavi microNIR spectrometer equipped with linear variable filter and 128 pixel cooled InGaAS photodiode array detector (MicroNIR 1700EC | VIAVI Solutions Inc.). Adulterant measured were acetaminophen, baking powder, benzocaine, caffeine, calcium carbonate, custard powder, dextrose, Kendamil milk powder, lactose, lidocaine, levamisole, Nanny milk powder, Nido milk powder, procaine HCl, starch, talc and vanillin.

Theis dataset comprises infrared spectral data of 308 street drugs of different formulations, shapes and colours. The details of the street drug samples are enclosed in the ‘ATR-FTIR Scan Log of Samples.xls’ file. ATR-FTIR spectra were collected using the Bruker Alpha-FTIR spectrometer equipped with an ATR diamond holder.

This dataset comprises infrared spectra of six drugs spiked in five different drinks collected using the Agilent 4500a attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectrometer (https://www.agilent.com/en/product/molecular-spectroscopy/ftir-spectroscopy/ftir-compact-portable-systems/4500-series-portable-ftir).

Rapid detection of AKB-48, caffeine and procaine impregnated in paper by handheld Raman spectroscopy.

The attached dataset comprises a handheld Raman spectroscopic dataset of one synthetic cannabinoid derivative and two cutting agents impregnated into paper at four different concentrations and collected using the Rigaku FirstGuard Raman spectrometer equipped with 1064 nm laser wavelength.