need 275 word thread for reply on The chain of custody of documentary evidence "means that a record must be kept of when a document is received and what has happened to it since its receipt" (Albrecht, et al., 2018). Records must be kept whenever an evidence document is moved out of the custody or control of the examiner. The coordination of evidence is also important because it helps share evidence among parties in a coordinated manner. A key step in the evidence collection process is marking the evidence. Marking evidence consists of uniquely marking the documentary evidence for future inspection. A transparent envelope is typically used to store the evidence as well. The original document should not be tampered with but rather have copies made from it to be used for the investigation and sometimes even for the trial although the copies are considered secondary evidence. The original document is typically only used for the trial. A numbering device called Bates numbers is used by attorneys to track all documents in litigation. This system helps keep track of necessary evidentiary documents (Albrecht, et al., 2018)