Some committees hold a small number of hearings outside the Capitol complex. The vast majority of such Field hearings occur in the home state or home district of the chair of the committee or subcommittee. Such hearings often are used as a means of connecting with constituents on a problem of local importance or illustrating a national problem through a case study based on local conditions. Frequently, the witnesses appearing at Field hearings are officials and individuals from the state or district where the hearing is held.