Superimposition and Tattoo Mark
| A | Luminol spray | |
| B |
Infrared photography |
|
| C |
Ultraviolet light |
|
| D |
Magnifying lens |
| A |
Luminol spray |
|
| B |
Infrared photography |
|
| C |
Ultraviolet light |
|
| D |
Magnifying lens |
B i.e. Infrared photography
Patient’s relative gives a history of tattoo, however it was not found during autopsy. What should be dissected to find it:
JIPMER 14
| A |
Lymph node |
|
| B |
Skin |
|
| C |
Spleen |
|
| D |
Kidney |
Ans. Lymph node
Corneal tattooing may be done with:
| A |
Gold chloride |
|
| B |
Calcium chloride |
|
| C |
Copper sulfate |
|
| D |
Potassium permanganate |
Ans. Gold chloride
Tattooing in old decomposed body can be visualized by use of all except ‑
| A |
H2O2 3% |
|
| B |
Gamma rays |
|
| C |
Infrared photography |
|
| D |
Examination with magnifying glass |
Ans. is ‘b’ i.e., Gamma rays
Latent tattoo marks are faded marks and they can be visualized by
-
Use of ultraviolet light
-
Infrared photography
-
Rubbing the part and examining under the magnifying glass
-
If tattoo marks are obscured by decomposition they can be visualized by treating with 3 % H2O2.
-
Tattoo marks can be developed by treating the skin by 0.5% caustic potash.
-
Histopathology of local lymph nodes for pigment.

| A | H2O2 3%. | |
| B |
Gamma rays. |
|
| C |
Infrared photography. |
|
| D |
Examination with magnifying glass. |
Tattoo marks
- Tattoo marks are designs made by multiple small puncture wounds made through the skin with needles or similar penetrating tools dipped in colouring agents ( dye ).
- Tattoos are distinctive, potentially important acquired identifying features that last for the life of the bearer, and persist into the postmortem period.
Latent tattoo marks are faded marks and they can be visualized by
- Use of ultraviolet light
- Infrared photograpy
- Rubbing the part and examining under magnifying glass
- If tattoo marks are obscured by decomposition they can be visualized by treating with 3 % H2O2.
- Tatto marks can be developed by treating the skin by 0.5% caustic potash.
- Histopathology of local lymph nodes for pigment.

