By purchasing CHECK4METH online, I understand CHECK4METH is a screening test only to pick up the presence of Methamphetamine over the .5µg/100cm2 level and should only be used as a presumptive test. CHECK4METH is not suitable for legal purposes or for passing properties after decontamination work has been completed. MedNZ Ltd hold no responsibility for screening results achieved by using the CHECK4METH kits. MedNZ Ltd recommends professional advice should be taken on all positive screens.