New Milford Police Lt Larry Ash is back on the job after an independent investigation by an external agency.  Mayor Pete Bass says the case has been cleared and closed by that agency.  As a result, Ash was reinstated and is resuming his position as the Commander of Field Services.  The allegation that led to the investigation is still unknown.  Ash was placed on administrative leave this summer after a complaint was received through the New Milford Police Tips Line.  According to the press release, outside investigations are standard protocol for investigations on senior-level administration.   Ash has been with the department since 1987.