The Welshman carded a third-round 65 at Crans-sur-Sierre for a 13-under-par as he chases a second European Tour title.
BBC: Dredge won his only previous title in Madeira
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But Sierre Leoneans have seen too much suffering in the past few years to believe their country's problems are solved.
ECONOMIST: Sierra Leone
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Last year at Crans-sur-Sierre he led by four shots going into the final round but missed a short putt for victory and lost in a play-off to Frenchman Jean-Francois Lucquin.