Phadebas has been used within Forensic Biology for many years. The original article that described the usefulness of Phadebas® in forensics was written already back in 1974*. It all started in UK but usage is now global. Originally the test was used for presumptive testing of suspicious stains, i.e. Tube test, but some labs started to crush Phadebas Amylase Test tablets and spray them on filter paper. These papers were used as searching devices to localise hidden saliva stains on items, complementary to the Tube test that could only test visible stains.