| Robert Scopoline | | Milwaukee Cnty Sheriffs Ofc | 111 | 12/09/1977 | |
| Walter Schwenk | | Eau Claire Cnty Sheriffs Ofc | 030 | 10/26/1945 | D |
| Clarence Schwartz | | Wisconsin Gaming Commision | 109 | 06/16/1977 | |
| Lavern Schumann | | Watertown Police Dept | 138 | 09/14/1984 | |
| David Schultz | | Eau Claire Cnty Sheriffs Ofc | 110 | 09/23/1977 | R |
| Charles Schroeder | | New Berlin Police Dept | 178 | 09/23/1994 | D |
| Peter Schreiber | | Wisconsin State Patrol | 147 | 12/12/1986 | |
| Del Schraufnagel | | Hartford Police Dept | 100 | 03/20/1975 | |
| Arthur School | | Wisconsin State Patrol | 099 | 12/05/1974 | |
| Richard Scholz | | Muskego Police Dept | 096 | 03/27/1974 | |
| Alton Schoepke | | Whitefish Bay Police Dept | 103 | 12/11/1975 | |
| Roger Schoenfeld | | Kenosha Cnty Sheriffs Ofc | 105 | 06/17/1976 | D |
| Gary Schmidt | | Uiv of WI -Madison Police Department | 190 | 09/12/1997 | R |
| James Scherff | | Racine Cnty Sheriffs Ofc | 186 | 09/13/1996 | |
| Elmer Scherer | | Manitowoc Police Dept | 017 | 06/28/1941 | |
| Glenn Schaepe | | Oneida Cnty Sheriffs Ofc | 179 | 12/16/1994 | R |
| John Sayers | | Libertyville IL Police Dept | 124 | 03/20/1981 | D |
| George Sawyer | | Walworth Cnty Sheriffs Ofc | 037 | 03/26/1948 | D |
| Mark Samelstad | | New Richmond Police Dept | 180 | 03/24/1995 | R |
| Paul Sainsbury | | WI Dept of Justice/DCI | 138 | 09/14/1984 | |
| Richard Sader | | Waukesha Police Dept | 137 | 06/15/1984 | D |
| Thomas Sacia | | Pierce Cnty Sheriffs Ofc | 133 | 06/24/1983 | |
| George Ryan | | Wisconsin State Patrol | 106 | 09/23/1976 | |
| Edward Rudolph | | Port Washington Police Dept. | 101 | 06/19/1975 | D |
| Kevin Ruder | | Stevens Point Police Dept | 233 | 06/06/2008 | R |
