de minimis non curat lex
Latin phrase
de mi·ni·mis non cu·rat lex dā-ˈmi-ni-ˌmēs-ˌnōn-ˌkü-ˌrät-ˈleks 
: the law does not govern trifles : law ignores insignificant details
Word History
Legal Definition
de minimis non curat lex
noun
de minimis non cu·rat lex
-ˈnän-ˈkyu̇r-ət-ˈleks, -ˈnȯn-ˈkü-rät-
: the principle that the law is not concerned with insignificant or minor matters