雪地上的足迹与土地面上的足迹的特征具有诸多不同点,为了侦察破案的需要,必须对雪地上的足迹特征的变化规律有较深刻的认识。在近些年的办案实践中,我们对此进行了积累性的研究,现将研究结果具体介绍如下:一、雪地的类型和足迹特征的变化雪地的类型可分为初冬、深冬、冬末雪地和深雪地、浅雪地。初冬、冬末雪地因昼夜温差较大而 There are many differences between the footprint on the snow and the footprint on the land. In order to detect the need of solving the crime, we must have a deeper understanding of the variation of the footprint characteristics on the snow. In the practice of handling cases in recent years, we have carried on accumulative research to this, the research result concrete introduction is as follows now: First, the snow type and footprints change of characteristics The type of snow can be divided into early winter, deep winter, Winter snow and deep snow, shallow snow. Early winter, winter snow due to larger temperature difference between day and night