Specifications include, but are not limited to: Required security services include, but are not limited to, foot patrol of Colonial Park Cemetery. Additional security services may be required at Bonaventure, Greenwich, Laurel Grove North, and Laurel Grove South Cemeteries on an as-needed basis. This contract includes Colonial Cemetery foot patrols and additional patrols when requested by the Department of Cemeteries such as roving patrols, bicycle patrols, stationary posts, foot patrols, undercover patrols, and other security services which may be required. Assignments will generally be scheduled in shifts of four (4) to eight (8) hours. Assignment types, days, and times may be changed periodically as necessary to avoid becoming predictable and to address changing security needs.