1-71. Another type of cache is pre-positioning. If the support mechanism in the AO allows it, personnel should pre-position the equipment for the exfiltration. This task will normally occur or be possible in waterborne scenarios with active auxiliary or underground forces. The caching element emplaces the cache and submits a cache report that is forwarded to the detachment. The detachment then establishes surveillance, emplaces security, and recovers the cache IAW the recovery plan.