Chemical traces on your phone reveal your lifestyle, scientists sayCreated by:
This could be helpful to healthcare professionals as well especially in checking compliance of patients, or maybe even determining the cause behind a patient's illness. It may be less hlepful in terms of forensic science however, because merely knowing such minute details will probably not enable us to gain any valuable information on the deceased or the suspect. Perhaps it may serve only useful when the case is at a stalemate. Yet, I must say that this is an interesting thought, and was probably conceived from the fact that our phones are always close by throughout our daily lives and we would indefinitely have left some 'incriminative' evidence on it.
Here is the article for your perusal: https://www.theguardian.com/science/2016/nov/14/chemical-traces-on-your-phone-reveal-your-lifestyle-scientists-say