Jasper County was organized in 1841 and named for William Jasper, a hero of the American Revolutionary War. The first seat of justice in Jasper County was established in the home of George Hornback, west of Carthage, on February 25, 1841. Samuel M. Coolley, Jeremiah Cravens and Samuel B. Bright were the first justices of the Jasper County Court. Missouri Governor Thomas Reynolds appointed John P. Osborn as the first sheriff of Jasper County. One of his first tasks was to give public notice that the county court of Jasper County would meet in the home of George Hornback until the permanent seat of justice was established.
A permanent county seat was chosen in March 1842 and was located on the north side of the present public square in Carthage. This courthouse was later replaced by a larger two story brick and stone structure that was completed in 1854, which also functioned as the county jail. The courthouse was used as a hospital during the Civil War and was destroyed by fire during fighting in October 1863. Several temporary locations were used for the courthouse over the next 30 years until the current Jasper County Courthouse was constructed on the Carthage square in the mid-1890s.
Following the burning of the courthouse and county jail during the Civil War there was very little left of the original buildings or residents of Carthage. Over the next several months, some former residents returned, but many settled elsewhere - and although the war was itself over, the hostilities among families and former friends were not. Many in Carthage were southern sympathizers, and with a strong federal presence in Missouri, they were reluctant to return. But probably the biggest reason was the simple fear of the lawless bands that roamed the area - there was simply no one to keep them in check.
In the spring of 1865, the state government, eager to restore some degree of normalcy as soon as possible, named three men to the Jasper County Court, and appointed Samuel H. Caldwell as sheriff. In May, these men met in Carthage, likely under the escort of federal troops as no official record of the meeting was kept, did little more than survey the war damage. Nevertheless, the first step of returning order to Carthage and Jasper County had been taken.
The Jasper County jail was the site of a number of hangings with the first being in 1878. On February 15, 1878, the citizens of Carthage witnessed the first legal hanging in Jasper County. John Ables had been brought to Jasper County on a change of venue to be tried for shooting another man in McDonald County. The county court had sentenced him to death. Two stays had been granted, and during his lengthy confinement, he had gained the sympathy, so much so that the day before his scheduled execution, he was allowed to go to Spring River to fish. Finally, there were no more stays, and Ables was hanged from the newly-built gallows on the west side of the county jail. Sheriff J.C. Beamer operated the gallows and was assisted by his aides and the members of the Carthage Light Guard. Public hangings at that time were a major civic event and it was reported that thousands came from all over the region to watch the event.
Subsequent hangings in Jasper County however were conducted behind a framed enclosure and only those receiving a ticket were allowed inside to view the event. The last hangings were the Worden brothers in 1932 and 1933. They were convicted of attacking a Carthage High School girl during a series of road holdups in 1931. Sheriff Oll Rogers directed the construction of an indoor scaffolding system inside the jail for the hanging in 1933, but after that time all executions were moved to Jefferson City and the scaffolding was dismantled.
Two officers have died inthe line of duty while in the service of the Jasper County Sheriff's Department. Special Deputy E.O. Bray, was a former Carthage Police Officer and a constable for a local township. Bray was working as a full-time custodian for Mark Twain Elementary School in Carthage, and had been asked to fill in as a jailer for Deputy George Dyer, so that Dyer could have Sundays off. On Sunday, December 14th, 1930, a young man and a young woman, Albert McCann, 19, from Joplin and his wife, Billie McCann, 19, came into the jail to attempt to free a prisoner and shot Bray three times. Bray died at the scene. The suspects were later captured and sentenced to prison. The McCanns had been on a murderous crime spree, in the Midwest, mainly robbing pharmacies, including the Gray-Seaver Drug in Carthage.
On January 4, 2002, Sergeant Scott Arner died while diving a lake in search of a homicide victim. Arner, a 13-year veteran of the sheriff's office, was a K-9 handler as well as a certified diver. Information led investigators to the frozen lake where it was thought a person had been shot and thrown in. It is suspected that an equipment failure led to Sgt. Arner's drowning.
The original county jail sat at the southwest corner of 4th & Lincoln Streets, across the street from its present site. Destroyed during the war, it was rebuilt near the intersection of 4th & Clinton on the south side of the street, and served not only as the jail, but for meetings of the county court as well as other community functions.
In 1957 a new jail was built at its current location on the corner of 5th and Lincoln streets. That jail was a modern structure for the time and was completed after voters passed a $246,000 bond issue. The jail replaced the old structure which had been built in 1872 and was renowned for its "medieval" character and was referred to in a report as the "black hole of Calcutta" due to the conditions at the facility. The committee that had been assigned to evaluate the conditions of the jail in 1911 commented that, "It is almost beyond comprehension, to believe that such a condition can and does continue to exist in a rich, educated and moral community like Jasper County."
In 1994 the jail was expanded giving it the ability to house 164 inmates. In 2006 a law enforcement sales tax was passed in Jasper County allowing the sheriff's office to modernize its law enforcement abilities, upgrade the operations of the Sheriff's Office and make some significant renovations and upgrades to the current county jail. Today the sheriff's department is made up of 150 men and women who work diligently to bring a quality law enforcement service to the citizens of Jasper County.