This principle is based on the premise that public health is better protected when the burden of proof is on the applicant since it has to prove that a particular subject matter is safe prior to its placing on the market, instead of the public authorities having to prove that a subject matter is unsafe in order to be able to ban it from the market.
To se načelo temelji na pretpostavci da je javno zdravlje bolje zaštićeno kada je teret dokazivanja na podnositelju zahtjeva, to jest kada on prije stavljanja predmeta postupka odobravanja na tržište mora dokazati da je taj proizvod siguran, umjesto da javna tijela moraju dokazivati da proizvod nije siguran da bi mu mogla zabraniti pristup tržištu.