Forensic chemistry is the application of chemistry and its subfield, forensic toxicology, in a legal setting. It includes the trace or compositional analysis of non-biological trace evidence found at crime scenes in order to identify unknown materials and match samples to known substances. It also includes drugs/controlled substances taken from scenes and people in order to identify and sometimes quantify these materials such as poisons, fire residues, chemical contaminants, pollutants in environmental, product safety or personal injury cases, building debris, condom lubricants and so on. Our specialists in this field have a wide array of methods and instruments to help identify unknown substances. or report on safe levels of exposure in health and safety cases.