Soil evidence non-destructive environmental magnetism test method in criminal investigation

The invention discloses a soil evidence non-destructive environmental magnetism test method in criminal investigation, comprising the following steps: (1) separately collecting at least two soil samples (samples or a collection of samples), drying the samples; (2) dispersing the block samples after drying with an agate mortar; (3) separately weighing the samples after grinding , putting the samples in sample cells and making a record; (4) adopting a susceptibility meter to measure and record the low frequency susceptibility and the high frequency susceptibility of the samples; (5) adopting an alternating magnomatic, a pulse magnetizer and a rotating magnetometer to measure and record the saturation isothermal remanent magnetization and anhysteretic remnant magnetization of the samples; (6) obtaining the ratio of magnetic parameters by calculating and measuring, which can be obtained by that one magnetic parameter is divided by the other magnetic parameter. The invention is simple, fast, convenient and cheap,