Patent ID: 11890826
Assignee: REPUBLIC OF KOREA (NATIONAL FORENSIC SERVICE DIRECTOR MINISTRY OF THE INTERIOR AND SAFETY)
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC A  B

Claim 0:
1. A method of enhancing a footwear impression formed on a porous surface using a potassium ferrocyanide solution for footwear impression enhancement, the method comprising:
forming a porous surface sample by leaving footwear impressions into an object having a porous surface;
preparing a potassium ferrocyanide solution for footwear impression enhancement, wherein the preparing of the potassium ferrocyanide solution includes mixing an aqueous solution of potassium ferrocyanide and hydrochloric acid; and
applying the potassium ferrocyanide solution for footwear impression enhancement to the porous surface sample.