This sheet for identification (X1) includes a support sheet (10) and an adhesive sheet (20). The support sheet (10) is marked with an identification mark (M1). The adhesive sheet (20) has a laminatedstructure that includes a base material layer (21) and an adhesive layer (22). The adhesive layer (22) is capable of being adhered to and peeled from the support sheet (10). Additionally, the adhesivesheet (20) is marked with an identification mark (M2). This sheet for identification (X1) is suitable for continuing to ensure evidence admissibility of collected identification material.