Taking into account, inter alia, principle of proportionality (…), the use of such tools in accordance with national law should be commensurate with the nature and (…) gravity of the offences under investigation.
V skladu z načelom sorazmernosti (med drugim) (…) bi morala uporaba teh orodij v skladu z nacionalno zakonodajo biti sorazmerna z naravo in (…) težo preiskovanega kaznivega dejanja.