ㄔㄚˊcháㄈㄤˇfǎng

  1. 考察探訪宋史··本紀》:飢民失業監察御史察訪。」老殘遊記·》:沿途打聽政績緩緩起行以便察訪。」查訪

to make an investigative visit, to go and find out from the source