Analytical chemistry and forensic science have had a vibrant relationship for many decades. Today, analytical investigation is thriving worldwide because of the development of highly advanced analytical instruments. This is constantly developing innovative, highly sophisticated and compact analytical instruments for on-spot detection of evidence, i.e. portable or mobile devices which provide quicker results without destroying the samples.¹  These analytical procedures are able to (i) characterize the chemical properties of the sample, (ii) discriminate the origin of similar looking exhibits with 99.99% assurance and (iii) categorize the samples to their precise groups. Detailed investigation of the forensic exhibits is necessary to ascertain (i) the modus operandi of the suspect; (ii) the origin or place of crime, i.e. whether it originated indoors or outdoors or tempering at crime scene; and (iii) estimation of the approximate time period of crime incidence. Such investigations will assist the investigator in connecting the criminals with the crime.²