reliability of the document if later challenged. The pictures should allow for a clear and detailed description of the circumstances of the collection of the document, thereby removing possible doubt about interference with the document. For more information on the production of photographic and video images, refer to the next section. Make Copies To prevent loss of documentary information, unofficial investigators are encouraged to make copies of documentary information as soon as practically possible, by using photocopiers, photographic devices, or other means. However, be aware of the risks involved in producing photocopies of documentary information. The more copies of potentially incriminating information are kept, the higher the chances of such information being disclosed by third parties. This could endanger the safety of the custodians of the information and any other individuals involved in the collection process. Preparations must be made prior to engaging in photocopying to ensure the safety and security of the copies of documentary evidence. Preferably, photocopies should be safely stored using an encrypted hard drive. Cloud services are corruptible and can be hacked into. See the Management of Information chapter for more information on the management on this. Protect Potential Forensic Information Documentary information can, in some cases, also serve as forensic information at the same time. Documents could contain the DNA or fingerprints of perpetrators, victims or witnesses of serious human rights violations. This forensic evidence could provide information on the context or circumstances of the violations. In order not to contaminate or corrupt any of the forensic value of documentary information, unofficial investigators are advised to handle documents with the required care and, if possible, always wear rubber (latex) gloves when handling documents. Each piece of documentary information is best collected individually, in a plastic bag, preferably with a completed copy of the summary sheet or cover letter included inside the plastic bag containing the document. Never alter or modify the state of a document. If documents are attached together, do not separate them or store them individually. Attached documents should be considered one single piece of documentary information and collected as such. 66