5) Meaning of “matter”
To determine the existence of a conflict affecting a current or former government lawyer, the RPC defines the term “matter” to include any litigation, judicial or administrative proceeding, case, claim, application, request for a ruling or other determination, contract, controversy, investigation, charge, accusation, arrest, negotiation, arbitration, mediation, or any other representation involving a specific party or parties. RPC 1.0(l). The term does not include agency rulemaking functions. RPC 1.11(e).