The thin section identification (X1) includes support chip (10) and bonding sheet (20). Support chip (10) identification label (M1). Adhesive sheet (20) has a laminar structure, and it includes substrate layers (21) and adhesive phase (22). Adhesive layer (22) can be pasted from support chip and remove (10). In addition, adhesive sheet (20) identification label (M2). The thin section identification (X1) is applicable to the admissibility for continuing to guarantee evidence collection expert evidence.