The procedure is pretty simple. The resignation of the officer does not make the investigation moot.I have a question in regards to resignation from the NYPD. You want to leave in the best standing possible. Must have valid Florida driver's license. A resignation is effective as provided in s. The resignation of the officer does not make the investigation moot. 3 Step Sample Resignation Letter Example Template. Professional resignation letters require no creativity or long thought out processes. Please let me know if there is any paperwork or formalities required to complete the resignation process.