A corpus for forensic identification of dialect speaker in some area

China is very extensive in area and is with a large population, which leads to many dialects. In such a case should dialects with accents to some degree be analyzed to ascertain speakers´ identification in legal practices. Here, a way in a technical and linguistic sense will be explained and demonstrated, which is how to project a corpus for forensic identification of dialect speakers through an examle of Puyang city. Such points will be introduced as design ideas, design plans, recording operation, and technologies of processing collect data in the course of projecting such a corpus.