perpetuate
-at·ed -at·ing : to preserve or make available (testimony) for later use at a trial by means of deposition esp. when the evidence so gathered would be otherwise unavailable or lost
NOTE: Courts will not allow the perpetuation of testimony at a pretrial proceeding if it appears to be an attempt to fish for useful material. per·pet·u·a·tion [pər-pe-chə-wā-shən]
n