Mobile Digital Terminal Logs (Appendix XI) and Crew Log Sheets (Appendix XII) are the only vehicle assignment logs kept at Transportation Bureau, with the exclusion of Statewide Detail. They are a legal record of daily activities which can be subpoenaed into court and as such, shall be completed legibly and accurately. All Mobile Digital Terminal entries are recorded on microfilm. Each week the microfilm is retrieved from the Sheriff's Communication Center and retained at Transportation Bureau for a period of two years.