Collect the evidence
Run controlled tests for EMF, UV, writing, Spirit Box, Ghost Orbs, DOTS and freezing evidence.
Route at a glance
EMF Level 5
Place/check EMF around interactions. Not every interaction produces level 5 even when it is an evidence type, so collect multiple readings.
Ultraviolet
Check recently touched doors, windows, switches and similar surfaces quickly after interactions.
Spirit Box
Follow the current equipment conditions for range/lights/player presence. Ask short questions repeatedly rather than assuming one failed response rules it out.
Writing / DOTS / Orbs
Place writing books where the ghost is active, position DOTS to cover movement paths and use video/night vision for orbs. Orbs are tied to the ghost room and can be easy to miss at bad camera angles.
Use the journal to eliminate
Mark confirmed evidence and cross out evidence you have conclusively disproven only when your difficulty guarantees that evidence can appear.