www.bvda.com Open in urlscan Pro
94.232.165.32  Public Scan

Form analysis
1 forms found in the DOM

Name: zoekform — #

<form name="zoekform" action="#" onsubmit="return false">
  <input value="" maxlength="60" onkeyup="search()" class="zoekveld" border="0" type="text" name="zoekwoord" id="zoekwoord" onblur="javascript:if(this.value == '') { searchClear(); }">
</form>

Text Content

 * PRODUCT CATEGORIES
 * FEATURED
 * CONTACT
 * A to Z

 * Categories
 * Latent Fingerprints
 * Shoeprints
 * Toolmarks
 * Microtraces
 * Biological traces
 * Evidence collection
 * Investigation kits
 * Marking and Photographing
 * Fingerprint taking
 * Forensic Equipment
 * Selection
 * Gellifters
 * GLScan systems
 * IND 1,2-indanedione
 * 5-MTN
 * Chemical developers
 * Cyanoacrylate fuming
 * Staining blood traces
 * SILMARK CART Toolmarks
 * SILMARK CART fingerprints
 * Sole Print (for taking shoeprints)
 * Swedish black

 * Latent Fingerprints
 * Lifting fingerprints
 * Cyanoacrylate fuming
 * Amino acid reagents
 * Chemical developers
 * Staining blood traces
 * Fingerprint Powders
 * Brushes
 * Shoeprints
 * Lifting shoeprints
 * Casting shoeprints
 * Shoeprints in blood
 * Taking shoeprints
 * Toolmarks
 * Silicone impression compound
 * Toolmark aids
 * Microtraces
 * Hairs and fibers
 * Gunshot residue
 * Biological traces
 * Finding blood
 * DNA
 * Evidence collection
 * Packing material
 * Fire investigation
 * Tools and instruments
 * Investigation kits
 * Universal investigation kits
 * Burglary investigation kit
 * Finger- and palmprint taking kit
 * Foot- and tireprint kit
 * Iodine Fuming kit
 * UV kit
 * Compact UV kit
 * Obliterated number restoration kit
 * Marking and Photographing
 * Photographic rulers
 * Evidence marking
 * Fingerprint taking
 * Fingerprint ink pads
 * Fingerprint ink
 * Printake
 * Ink rollers
 * Fingerprint cardholders
 * Palmprint ink roll and pads
 * Miscellaneous
 * Fingerprint magnifier
 * Forensic Equipment
 * GLScan Imaging Systems
 * Light sources

 * Lifting fingerprints
 * Gellifters
 * Instant Lifters
 * Lifting tape
 * Silicone for lifting
 * Cyanoacrylate fuming
 * PECA Cyano powder
 * Cyano fluid
 * Cyano staining solutions
 * Amino acid reagents
 * Ninhydrin
 * IND
 * MTN
 * DFO
 * ThermaNin
 * Chemical developers
 * Physical Developer
 * Silver Nitrate solution
 * Iodine / Benzoflavone
 * Crystal Violet
 * Oil Red O
 * Sudan Black (Solvent Black 3)
 * Staining blood traces
 * Acid Yellow 7
 * Acid Violet 17
 * Amido Black
 * Crowle's stain
 * Hungarian Red
 * Coomassie Blue
 * Leuco Crystal Violet
 * Fingerprint Powders
 * Special powders
 * Instant powders
 * Concentrated powders
 * Blower brush powders
 * TwoTone powders
 * TwoPurpose powder
 * Fluorescent powders
 * Magnetic powders
 * Magnetic TwoTone
 * Magnetic fluor powders
 * VISAS IR powder
 * Small particle reagent
 * Powder Suspension
 * Brushes
 * Zephyr brush
 * Squirrel hair brush
 * Marabou brush
 * Carbon brush
 * Blower brush
 * Magnetic brushes
 * Lifting shoeprints
 * Gellifters for shoeprints
 * Casting shoeprints
 * Foot- and tireprint casting kit
 * Plaster of Paris
 * SLM release agent
 * Unifix 16
 * Universal sprayer
 * Casting frame metal
 * Mixing bowl/sieve
 * Contrast powder for snow
 * Shoeprints in blood
 * Acid Yellow 7
 * Acid Violet 17
 * Amido Black
 * Crowle's stain
 * Hungarian Red
 * Coomassie Blue
 * Leuco Crystal Violet
 * Taking shoeprints
 * Sole Print
 * Silicone impression compound
 * SILMARK gray
 * SILMARK CART
 * Toolmark aids
 * Mixing pad
 * Mixing dish
 * Svedia spatula
 * Photo ruler
 * Testmarks
 * Preparation of replica
 * Hairs and fibers
 * VacuuMark
 * Microtrace tape
 * Instant lifter for hairs and fibers
 * Finding blood
 * Luminol
 * Bluestar
 * Hemastix
 * Peroxtesmo
 * Hexagon OBTI
 * Phenolphthalein
 * Leucomalachite green
 * DNA
 * Swabs
 * Packing material
 * Paper bags
 * Fire investigation
 * Fire debris bags
 * Tools and instruments
 * Forceps
 * Scalpel
 * Scissors
 * Disposable pipet
 * Magnifiers
 * Fine-tooth comb
 * Mouth mirror
 * Mouth opener
 * Eco Sprayer kit
 * Photographic rulers
 * Photo ruler, 40 cm
 * L-scale for shoeprints, foldable
 * Marking tape
 * L-scales for shoeprints, bureau style
 * L-scale, ABFO #2 style
 * Rulers 15 cm/6 inch
 * Fluorescent rulers 15 cm/6 inch
 * Rulers 5 cm/2 inch
 * Fluorescent rulers, 5 cm/2 inch
 * Fluorescent L-scale rulers, ABFO #2 style
 * Magnetic ruler, 60 cm
 * Magnetic rulers 15 cm/6 inch
 * Magnetic rulers 5 cm/2 inch
 * Disposable L-scale
 * Disposable photo ruler
 * Evidence marking
 * Numbers and arrow signs
 * Evidence markers with L-scale
 * Evidence markers with letters
 * Hinged evidence markers
 * Evidence marker kits
 * Self-adhesive labels with numbers or arrows
 * Self-adhesive labels with scale
 * Marking strips
 * Fingerprint ink pads
 * Ceramic ink pad rectangular
 * Instant BVDA fingerprint pad
 * Ceramic ink pad round, 64 mm
 * Ceramic ink pad round, 38 mm
 * Instant fingerprint pad, round
 * Ceramic ink pad rectangular, small
 * Fingerprint ink
 * BVDA fingerprint ink
 * Printake
 * Printake for fingerprints
 * Printake for palmprints
 * Printake booklet
 * Printake retainer pads
 * Ink rollers
 * Ink rollers with plastic handle
 * Fingerprint cardholders
 * Fingerprint cardholder
 * Fingerprint clamping device
 * Palmprint ink roll and pads
 * Palmprint ink roll, Porelon
 * Palmprint ink pad, Porelon
 * Ceramic palmprint ink pad
 * Miscellaneous
 * Kresto hand cleaner
 * Removal waterless cleaner
 * Ink cleaner
 * Glass cleaner, aerosol can
 * Ink remover towelettes
 * Ink spatula
 * Glass inking slabs
 * Opaque fingerprint form labels
 * Pre-fingerprinting tissues
 * Fingerprint magnifier
 * Fingerprint magnifier
 * GLScan Imaging Systems
 * GLScan SP
 * GLScan FP
 * Light sources
 * Polilight

 * Gellifters
 * Gellifters Black
 * Gellifters White
 * Gellifters Transparent
 * Lifting tape
 * BVDA lifting tape
 * Elastic PVC tape
 * Backing cards
 * Silicone for lifting
 * Silmark Black
 * Silmark White
 * Silmark CART
 * PECA Cyano powder
 * PECA Multiband
 * PECA Fluor Extra
 * PECA Regular
 * Cyano staining solutions
 * Basic Yellow 40
 * Basic Red 14
 * Ardrox
 * Safranine
 * Rhodamine 6G
 * Sudan Black
 * Ninhydrin
 * NINPRINT
 * Ready for use Ninhydrin
 * Ninhydrin Crystals
 * Iodine / Benzoflavone
 * Iodine Fuming kit
 * Special powders
 * Swedish black
 * Silver Special
 * Jet-Black Special
 * Gold Special
 * Silver grey special
 * Instant powders
 * Instant black
 * Instant Silver
 * Instant White
 * Instant Gold
 * Instant Copper
 * Concentrated powders
 * Concentrated black
 * Concentrated Silver
 * Dark grey
 * Blower brush powders
 * Special blower black
 * Concentrated blower black
 * Special blower silver
 * Magnetic powders
 * Jet black Magnetic
 * Black
 * Silver
 * Grey
 * Grey Special
 * White
 * Red
 * Small particle reagent
 * SPR Black
 * SPR White
 * SPR UV
 * Powder Suspension
 * Suspension powder silver/grey
 * Suspension powder black
 * Suspension powder white
 * Wet Powder Black
 * Wet Powder White
 * Tape Release Agents
 * Gellifters for shoeprints
 * Gellifters Black
 * Gellifters White
 * Gellifters Transparent
 * Polilight
 * Polilight PL 550 XL
 * Polilight PL 500
 * Polilight PL 400
 * Filter goggles

 
 *  * A
    * B
    * C
    * D
    * E
    * F
    * G
    * H
    * I
    * J
    * K
    * L
    * M
    * N
    * O
    * P
    * R
    * S
    * T
    * U
    * V
    * W
    * Z
   
    * 
      AAcid Violet 17
      Acid Yellow 7
      Amido Black
      Amino acid reagents
      Ardrox
      
    * 
      BBacking cards
      Basic Red 14
      Basic Yellow 40
      Biological traces
      Black
      Blood staining
      Blower brush
      Blower brush powders
      Bluestar
      Brushes
      Burglary investigation kit
      BVDA fingerprint ink
      BVDA lifting tape
      
    * 
      CCarbon brush
      Casting frame metal
      Casting shoeprints
      Ceramic ink pad rectangular
      Ceramic ink pad rectangular, small
      Ceramic ink pad round, 38 mm
      Ceramic ink pad round, 64 mm
      Ceramic palmprint ink pad
      Chemical developers
      Compact UV kit
      Concentrated black
      Concentrated blower black
      Concentrated powders
      Concentrated Silver
      Contrast powder for snow
      Coomassie Blue
      Crowle's stain
      Crystal Violet
      Cyanoacrylate fuming
      Cyano fluid
      Cyano staining solutions
      
    * 
      DDark grey
      DFO
      Disposable L-scale
      Disposable photo ruler
      Disposable pipet
      DNA
      
    * 
      EEco Sprayer kit
      Elastic PVC tape
      Evidence collection
      Evidence marker kits
      Evidence markers with L-scale
      Evidence markers with letters
      Evidence marking
      
    * 
      FFilter goggles
      Finding blood
      Fine-tooth comb
      Finger- and palmprint taking kit
      Fingerprint cardholder
      Fingerprint cardholders
      Fingerprint clamping device
      Fingerprint ink
      Fingerprint ink pads
      Fingerprint magnifier
      Fingerprint Powders
      Fingerprint taking
      Fire debris bags
      Fire investigation
      Fluorescent L-scale rulers, ABFO #2 style
      Fluorescent powders
      Fluorescent rulers, 5 cm/2 inch
      Fluorescent rulers 15 cm/6 inch
      Foot- and tireprint casting kit
      Foot- and tireprint kit
      Forceps
      Forensic Equipment
      
    * 
      GGellifters
      Gellifters Black
      Gellifters for shoeprints
      Gellifters Transparent
      Gellifters White
      Glass cleaner, aerosol can
      Glass inking slabs
      GLScan FP
      GLScan Imaging Systems
      GLScan SP
      Gold Special
      Grey
      Grey Special
      Gunshot residue
      
    * 
      HHairs and fibers
      Hemastix
      Hexagon OBTI
      Hinged evidence markers
      Hungarian Red
      
    * 
      IIND
      Ink cleaner
      Ink remover towelettes
      Ink rollers
      Ink rollers with plastic handle
      Ink spatula
      Instant black
      Instant BVDA fingerprint pad
      Instant Copper
      Instant fingerprint pad, round
      Instant Gold
      Instant lifter for hairs and fibers
      Instant Lifters
      Instant powders
      Instant Silver
      Instant White
      Investigation kits
      Iodine / Benzoflavone
      Iodine Fuming kit
      
    * 
      JJet-Black Special
      Jet black Magnetic
      
    * 
      KKresto hand cleaner
      
    * 
      LL-scale, ABFO #2 style
      L-scale for shoeprints, foldable
      L-scales for shoeprints, bureau style
      Latent Fingerprints
      LCV
      Leuco Crystal Violet
      Leucomalachite green
      Lifting fingerprints
      Lifting shoeprints
      Lifting tape
      Light sources
      Luminol
      
    * 
      MMagnetic brushes
      Magnetic fluor powders
      Magnetic Jet black
      Magnetic powders
      Magnetic ruler, 60 cm
      Magnetic rulers 5 cm/2 inch
      Magnetic rulers 15 cm/6 inch
      Magnetic TwoTone
      Magnifiers
      Marabou brush
      Marking and Photographing
      Marking strips
      Marking tape
      Microtraces
      Microtrace tape
      Miscellaneous
      Mixing bowl/sieve
      Mixing dish
      Mixing pad
      Mouth mirror
      Mouth opener
      MTN
      
    * 
      NNinhydrin
      Ninhydrin Crystals
      Ninhydrin Ready for use
      NINPRINT
      Numbers and arrow signs
      
    * 
      OObliterated number restoration kit
      Oil Red O
      Opaque fingerprint form labels
      
    * 
      PPacking material
      Palmprint ink pad, Porelon
      Palmprint ink roll, Porelon
      Palmprint ink roll and pads
      Paper bags
      PECA Cyano powder
      PECA Fluor Extra
      PECA Multiband
      PECA Regular
      Peroxtesmo
      Phenolphthalein
      Photographic rulers
      Photo ruler
      Photo ruler, 40 cm
      Physical Developer
      Plaster of Paris
      Polilight
      Polilight PL 400
      Polilight PL 500
      Polilight PL 550 XL
      Powder Suspension
      Pre-fingerprinting tissues
      Preparation of replica
      Printake
      Printake booklet
      Printake for fingerprints
      Printake for palmprints
      Printake retainer pads
      
    * 
      RReady for use Ninhydrin
      Red
      Removal waterless cleaner
      Rhodamine 6G
      Rulers 5 cm/2 inch
      Rulers 15 cm/6 inch
      
    * 
      SSafranine
      Scalpel
      Scissors
      Self-adhesive labels with numbers or arrows
      Self-adhesive labels with scale
      Shoeprints
      Shoeprints in blood
      Silicone for lifting
      Silicone impression compound
      Silmark Black
      SILMARK CART
      Silmark CART
      SILMARK gray
      Silmark White
      Silver
      Silver grey special
      Silver Nitrate solution
      Silver Special
      SLM release agent
      Small particle reagent
      Sole Print
      Special blower black
      Special blower silver
      Special powders
      SPR Black
      SPR UV
      SPR White
      Squirrel hair brush
      Staining blood traces
      Sudan Black
      Sudan Black (Solvent Black 3)
      Suspension powder black
      Suspension powder silver/grey
      Suspension powder white
      Svedia spatula
      Swabs
      Swedish black
      
    * 
      TTaking shoeprints
      Tape Release Agents
      Testmarks
      ThermaNin
      Toolmark aids
      Toolmarks
      Tools and instruments
      TwoPurpose powder
      TwoTone powders
      
    * 
      UUnifix 16
      Universal investigation kits
      Universal sprayer
      UV kit
      
    * 
      VVacuuMark
      VISAS IR powder
      
    * 
      WWet Powder Black
      Wet Powder White
      White
      
    * 
      ZZephyr brush
      
    * 
    * 
    * 
   
   


CART




LATENT FINGERPRINTS


AMINO ACID REAGENTS


 * Ninhydrin
   * - NINPRINT
   * - Ready for use Ninhydrin
   * - Ninhydrin Crystals
 * IND
 * MTN
 * DFO
 * ThermaNin




THERMANIN

FINGERPRINTS ON THERMAL PAPER


ThermaNin is a ninhydrin derivative for developing fingerprints on thermal
paper. Regular ninhydrin and DFO solutions are either based on polar solvents
(like acetone or ether) or contain them. These turn the top (active) layer of
thermal paper gray or black. Japanese researchers have published that hemiketals
of ninhydrin are soluble in petroleum ether (or other apolar solvents like
pentane, heptane) without the need for addition of polar solvents. These
solutions develop fingerprints on thermal paper without darkening of the
surface.
A waiting number ticket treated with regular ninhydrin solution.
A number ticket treated with a ThermaNin solution.
Detail from the ThermaNin treated number ticket.

Show Cart
 * Ordering info|
 * Directions for use|

Product #
Description
#
Add
 
 
B-79810
ThermaNin, 1 g in brown glass bottle

++
 
B-79850
ThermaNin, 10 g in brown glass bottle

++
 
B-79860
ThermaNin, 25 g in in brown glass bottle

++
 



MANUAL OF USE FOR THERMANIN


INTRODUCTION

Thermal paper, once mainly used as fax paper only, is now used in many
applications. These days it is used in ticket dispensers for giving out waiting
number or parking tickets, in label printers, and printers for point-of-sales
receipts at retail shops like supermarkets.

Thermal paper turns black on application of heat (as in the printer) but also on
contact with polar solvents like alcohols, acetone, ether, ethyl acetate etc.
The regular solutions of fingerprint reagents like ninhydrin and DFO are either
based on a polar solvent (ninhydrin in ether or acetone for example) or rely on
certain amounts of these polar solvents to dissolve them when used in an apolar
bulk solvent like petroleum ether or heptane.

These solutions have a detrimental effect on thermal paper: on application the
paper surface turns dark grey or black thereby obscuring any fingerprints that
may subsequently develop.


TECHNIQUES FOR DEVELOPING FINGERPRINTS ON THERMAL PAPER

There are a number of techniques known for developing fingerprints on thermal
paper:

 * 1,2-IND has been reported in several publications [1-3] to develop
   fingerprints without darkening the top (active) layer of the thermal paper.
   For finding and photographing the developed prints a Polilight or similar
   light source is needed.
 * DMAC (dimethylaminocinnamaldehyde) fumes react with fingerprints on thermal
   paper [4]. The fluorescence of any developed prints can be photographed with
   green light (Polilight, around 530 nm).
 * Exposure to the fumes of concentrated hydrochlorid acid was reported to
   develop prints on the top layer of thermal paper [5]. It will not develop
   prints on the back of thermal paper.
 * Rinsing away the thermal layer with acetone first and then treat with a
   regular ninhydrin solution. Alternatively treating the items with ninhydrin
   solution and after allowing ample time for development of fingerprints,
   rinsing the paper with an excess of acetone to remove all the text and/or
   grey-black stains. [6]
 * Ninhydrin sublimation in a vacuum [7].
 * Application of low-temperature heat [8a-c].

These techniques may not be appropriate, or the additional equipment needed not
available.

Japanese researchers have published [9] that hemiketals of ninhydrin, obtained
by exchanging the water molecule in ninhydrin [also known as 1,2,3-indantrione
monohydrate] for an alcohol, are soluble in apolar solvents like petroleum ether
without the need for addition of polar solvents. The solutions were reported to
develop fingerprints on thermal paper, without darkening of the surface.
Such a product is ThermaNin.

To our knowledge, the effectiveness of the different techniques has not been
compared.


HOW DOES THERMANIN WORK

ThermaNin will not develop any fingerprints by itself. The process relies on the
fact that after application of its solution to paper, ThermaNin will readily
convert to ninhydrin and the alcohol upon contact with water present in the
paper or in the atmosphere. This conversion can be detected from the weak odor
of the alcohol that will be given off by the paper afterwards. The ninhydrin
will then be available to react with any fingerprint residue in the paper. The
ninhydrin will not dissolve in petroleum ether, so the paper can be dipped twice
(with a certain waiting time in between, to allow for the conversion of the
ninhydrin hemiketal to ninhydrin and alcohol) to increase the ninhydrin
concentration in the paper.


MANUAL OF USE

Due to the sensitivity of ninhydrin hemiketals (like ThermaNin) towards water,
their solutions in petroleum ether cannot be stored long without degrading the
performance. A working solution should be used soon, at least within 1-3 weeks.
Therefore, we cannot supply working solutions, they should be made fresh when
needed. The ThermaNin crystals that we supply are fairly resistant to
atmospheric humidity and have no apparent shelf life when stored in tightly
sealed containers.

A working solution that takes not too long to prepare, by dissolving the
ThermaNin powder in petroleum ether/pentane or heptane by shaking (for 5-10
minutes), contains 4 gram per liter (or 0.4 gram per 100 ml). Slight warming of
the solution (till around 30-40° C) will aid the dissolution of the ThermaNin
powder considerably. Adding 0.5 ml of isopropanol (and optionally 1.5 ml of
ethyl acetate) per 100 ml of solution helps a lot too (see further for notes on
stability).

Contrary to our expectations, ThermaNin was found to have a very low solubility
in HFE-7100. Therefore working solutions of ThermaNin cannot be made in HFE-7100
alone. However, preliminary experiments [July 2004] indicate that stable
solutions, even in glass bottles, can be made by adding 0.5% isopropanol and
1.5% ethylacetate as co-solvents. This solution does not color the active layer
of thermal paper.

A working solution can be made quickly, by weighing 0.4 to 0.5 gram of Thermanin
and adding this to an empty 100 ml bottle (glass or aluminium). Adding 0.5 ml of
isopropanol and 1.5 ml of ethylacetate will dissolve the Thermanin, subsequently
dilute to 100 ml by adding the HFE7100.

German researchers at the BKA in Wiesbaden found that for dissolving,
application and storage of working solutions of ninhydrin hemiketals either
plastic or aluminium containers should be used, with a strong preference for
aluminium. Generally speaking petroleum ether etc. diffuses out of plastic
bottles and water in, aluminium does not have this problem.

In glass bottles the shelf life of the working solutions is drastically
shortened. This is probably due to the small amount of water adhering to the
walls and the slightly acidic nature of the glass surface (accelerates the
reaction between water and ThermaNin). However, adding 0.5% of isopropanol (5 ml
per liter) stabilizes the solution without negative effects on the thermal
paper.

Development of the fingerprints can be done in the usual manner: at room
temperature, in the dark and elevated humidity (around 80% is preferred).
Because of the nature of thermal paper heating of the paper to accelerate
development of the prints is not possible: the paper will turn dark.
Because of the sensitivity of the paper for polar solvents, treatment of the
thermal paper with zinc chloride is not an option either.

A stable working solution, even in glass bottles, has the following composition:
 
4-5 g ThermaNin crystals
5 ml   isopropanol
15 ml   ethyl acetate (optional for petroleum ether/heptane based solutions)
980 ml   petroleum ether (60-80°), heptane, or HFE-7100
--------
1000 ml working solution


SAFETY

On contact with water ThermaNin will readily fall apart in ninhydrin and
alcohol. Therefore, the safety characteristics of the product can be judged from
those components. Ninhydrin is considered harmful if swallowed and irritating to
eyes, skin and respiratory system; the alcohol as a skin and eye irritant. The
precautions taken when working with ninhydrin (protective clothing, gloves,
safety glasses when working with the solutions) will be sufficient for this
product too.
 


REFERENCES AND FOOTNOTES

[1] Stimac, J.T., "Thermal Paper: Latent Friction Ridge Development via
1,2-Indanedione", Journal of Forensic Identification, 2003, Vol. 53, No. 3, p.
265-271.
[2] Stoilovic, M.; Lennard, C.; "Fingermark Detection & Enhancement", Workshop
Manual, National Centre for Forensic Studies, 6th Edition, 2012.
[3] Goel, T.L., "Developing Latent Fingermarks on Thermal Paper: Comparison of
the 1,2-Indanedione-Zinc Chloride Dry Contact Method to the Hot Print System.",
Journal of Forensic Identification, 2015, Vol. 65, No. 1, p 34-43.
[4] Brennan, J.; Bramble, S.; Crabtree, S.; Wright, G.; "Fuming of Latent
Fingerprints Using Dimethylaminocinnamaldehyde", Journal of Forensic
Identification, 1995, Vol. 45, No. 4, p. 373-380.
[5] Broniek B.; Knaap, W.; "Latent fingerprint development on thermal paper
using muriatic (hydrochloric) acid", Journal of Forensic Identification, 2002,
Vol. 52, No. 4, p. 427-432.
[6] Fingermark Visualisation Manual, Chapter 5.TCR ISBN: 978-1-78246-234-7, Home
Office, January 2014. Available from The Stationary Office.
[7] Schwarz, L.; Frerichs, I., "Advanced Solvent-Free Application of Ninhydrin
for Detection of Latent Fingerprints on Thermal Paper and Other Surfaces",
Journal of Forensic Sciences, 2002, Vol. 47, No. 6, p. 1274-7. DOI:
10.1520/JFS15559J
[8a] Wakefield, M.; Armitage, S.; "The Development of Latent Fingerprints on
Thermal Paper Using a Novel, Solvent-Free Method", Journal of Forensic
Identification, 2005, Vol. 55, No. 2, p. 202-213.
[8b] TFD-2 Thermal Fingerprint Developer, made by Foster and Freeman.
[8c] HPS, made by Consolite Forensics.

[9] Takatsu, M.; Kageyama, H.; Hirata, K.; Akashi, S.; Yoko Ta, T.; Shiitani,
M.; Kobayashi, A. "Development of a New Method to detect latent fingerprint on
thermal paper with O-Alkyl derivate of ninhydrin", Reports of the National
Research Institute of Police Science, 1991, Vol. 44, No. 1, p. 1-6.







Home  |  Contact  |  Latent
Fingerprints  |  Shoeprints  |  Toolmarks  |  Microtraces  |  Biological
traces  |  Evidence collection
Investigation kits  |  Marking and Photographing  |  Fingerprint
taking  |  Forensic Equipment


At this moment we are not ready with the Swedish part of the website yet. You
can still visit the pages of the old website at: www.bvda.com/ktm/index.html
(opens in a new window or tab).