Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Criminal detection and case solving method using macroscopic and microscopic plant veins

A technology of criminal investigation and patterning, applied in the field of structural botany, can solve the problem that the solid residue in the stomach contents of dead corpses is difficult to distinguish, and achieve the effect of improving the case detection rate, stable structure, and high reliability

Inactive Publication Date: 2006-03-01
NORTHEAST NORMAL UNIVERSITY
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a method for criminal investigation of plants with macroscopic and microscopic planting patterns, which solves the problem that solid residues in the stomach contents of dead bodies are difficult to distinguish in criminal investigation work

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] First, the solid residue samples and plant standard samples of the gastric contents of the cadaver were taken, and the following steps were performed respectively:

[0018] 1. Staining: Soak in safranin plant dye for 48 hours, stain the cuticle and secondary wall of the vegetated cell nucleus and the outer tangential wall, and use bright green or fast green for 1-20 minutes on the primary wall of the vegetated cell 6 seconds to dye;

[0019] 2. Fixation: Take out the sample and soak it in a fixative prepared by 88ml of 60-degree ethanol, 6ml of glacial acetic acid, and 6ml of formaldehyde for 24 hours;

[0020] 3. Dehydration: Put the above samples into ethanol solutions with concentrations of 50%, 60%, 70%, 80% to 95% for gradient soaking, 2 hours each time, and then put them into absolute ethanol for 1 hour for dehydration;

[0021] 4. Transparency: Soak the sample in absolute ethanol for 0.5 hours, then put it in a 1:1 mixture of ethanol and xylene for 1 hour, then ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a case solving method using macro- and micro- plant veins of criminal investigation, including the steps: placing the solid residue and standard plant sample in plant coloring agent for soaking and dyeing, respectively; placing in the fixer prepared of alcohol, glacial acetic acid and formaldehyde for fixing; making gradient soak dehydration by alcohol; using the mixed solution of anhydrous alcohol and dimethylbenzene for soaking to making transparent processing; finally processing by Canada adhesive sealing plate, under the microscope, shooting them into 'sample plant vein photo' and 'standard sample plant vein photo'; by comparison, determining the kind of the sample. The photos have stable structure, uneasy to damage, high-creditability, providing clue for investigation, heightening case solving rate, etc.

Description

Technical field: [0001] The invention discloses a method for solving crimes by planting macroscopic and microscopic plant patterns for criminal investigation, and relates to the technical field of structural botany. Background technique: [0002] At present, in criminal investigation, the solid residue of the stomach content of the dead body is often used to find clues to solve the case. Due to the fragmentation of the solid residue and the effect of gastric acid, it is difficult to determine the type of food with ordinary methods, and it is impossible to directly take pictures of it, inspect the material, and fix it. , preservation, so it brings great difficulty to the detection of the case, affecting the detection of the case. Invention content: [0003] The invention provides a criminal investigation method for planting macroscopic and microscopic plant patterns to solve cases, which solves the problem that solid residues in the stomach contents of dead corpses are diff...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/28G01N1/30G01N1/34G01N33/02
Inventor 陆静梅
Owner NORTHEAST NORMAL UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com