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Visible and latent lip prints using alumnium powder on three different surfaces.
| Fabric Used | Visible Lip Prints Aluminium Powder |
Latent Lip Prints Aluminium Powder |
||||
|---|---|---|---|---|---|---|
| POOR | FAIR | GOOD | POOR | FAIR | GOOD | |
| White Cotton Fabric | 4 | 14 | 2 | 20 | 0 | 0 |
| White Satin Fabric | 0 | 15 | 5 | 16 | 4 | 0 |
| White Clay Cup | 8 | 12 | 0 | 17 | 3 | 0 |
| Total | 12 | 41 | 7 | 53 | 7 | 0 |
| χ2 | 13.770 | 4.205 | ||||
| p-value | 0.008* | 0.122 | ||||
The statistical test applied is using chi square test
*denotes significant association: p-value is significant
