Can ghost replenish hand in Reveal the Culprit phase
There is nothing in the Reveal the Culprit section about drawing new cards in the middle of the vision therefore you don't. It is similar to the Vision Interpretation part of the game where if you give a psychic multiple cards as part of a single vision you don't draw in-between them, only after you are done with that particular vision and a ready to move to the next psychic's vision.