"parens patriae"

— [parent of the nation]

"Modus operandi"

— [manner of working]

"de minimis non curat lex"

[The law does not concern itself with trifles]

(Source: thefreedictionary.com)

"res ipsa loquitur"

[“the thing speaks for itself”] “a doctrine of law that one is presumed to be negligent if one had exclusive control of whatever caused the injury even though there is no specific evidence of an act of negligence, and without negligence the accident would not have happened”

Well you learn something new everyday now don’t you?  Thank you property book for one more Latin phrase to add to my arsenal of Latin phrases :) 

(Source: dictionary.law.com)