Some landlords evaluate potential tenants themselves, while others may use a tenant screening service to evaluate potential tenants. A tenant screening service is an outside company that collects information on potential tenants and delivers reports to landlords. A tenant screening service may be used to validate the information given on a tenant's rental application by calling the employers, previous landlords, and personal references listed on the application. A tenant screening service may also be used to gather additional information not included in the rental application. Credit reports may be obtained and background checks may be performed. A tenant screening service may check for criminal and other court records, and search for information relating to any past evictions. Landlords use tenant screening services to identify and protect themselves against tenants that may pose a high risk, and use the reports obtained from tenant screening services to evaluate whether to rent to potential tenants.