To avoid being caught, murderers often attempt to hide bodies using various methods. This can include shallow or deep burials, submersion in water, encasing in concrete or even disposing of remains in rubbish bins and suitcases. Finding the body is a key part of any murder investigation, as it helps to identify, prosecute and charge the killer. Unfortunately, the task can be immensely difficult. To help tackle the problem of locating hidden graves, we have trialled two innovative techniques for searching underground: ground-penetrating radar and electrical resistivity tomography, or ERT. Our results are now published in the journal Remote Sensing.…