This principle is based on the premise that public health is better protected when the burden is on the applicant to prove that a particular food or feed is safe prior to its placing on the market, instead of the public authorities having to prove that it is unsafe.
Põhimõte toetub eeldusele, et rahvatervist kaitstakse paremini, kui taotleja peab tõendama enne turule laskmist, et konkreetne toit või sööt on ohutu, selle asemel, et riiklikud asutused peaksid tõendama, et see on ohtlik.