The San Marcos Sheriff's Station Business Office staff is available to assist the public Monday through Friday from 8 A.M. to 5 P.M. (excluding holidays). They may be reached in person at the station or by telephone at 760-510-5200.

The Professional Staff processes evidence, cases, traffic accidents, traffic citations, data entry, payroll. It provides liaison with other departments and agencies, and assists the public. This includes dispensing general information, directing inquiries, and providing copies of reports.