Another compelling reason not to allow the issuing officer to also act as the prosecutor in a New York traffic violation case is supported by the Latin maxim “inclusio unius est exclusio alterius”. What this Latin Maxim means is that where a law expressly describes a situation where it applies, an irrefutable inference arises that what was excluded or omitted was intentionally excluded or omitted. This ancient rule of statutory construction is codified in New York McKinney’s Statutes § 240 titled “Expression of one thing as excluding others”.
Section 240 states in pertinent part: “where a law expressly describes a particular act, thing or person to which it shall apply an irrefutable inference must be drawn that what is omitted or not included was intended to be omitted or excluded.” In other words, where a statute specifically mentions that said statute applies to one category of persons, said statute irrefutably implies the exclusion of other persons not specifically mentioned was intended by the Legislature. See e.g. Combs v. Lipson, 44 Misc.2d 467, 254 N.Y.S.2d 143 (1964) (Holding that the express grant of power to one person excludes by implication the grant of same powers to another.)
Applying this rule to situations where non-attorneys may represent others in New York, if the New York State Legislature enacted a statute which expressly described what class of non-attorneys could represent other people in court, an irrefutable inference arises that those non-attorneys not described in the statute may not represent others in a court or other quasi-judicial proceeding.