Special Investigations Unit - Staff DirectoryThe results are being filtered by the department: Special Investigations UnitClear Search A B C D E F G H I J K L M N O P R S T U V WR Doug Rhoads Deputy District Attorney Special Investigations Unit Phone: (610) 891-4192work Email: rhoadsd@co.delaware.pa.usINTERNET Chip Rosen Detective Special Investigations Unit Phone: 610-891-4163work Email: rosene@co.delaware.pa.usINTERNET T David Tyler Detective Special Investigations Unit Phone: 610-891-4197work Email: TylerD@co.delaware.pa.usINTERNET