Cheiloscopy and dactyloscopy: Do they dictate personality patterns?

Abstract

Context:Cheiloscopy and dactyloscopy, both are well-established forensic tools used in individual identification in any scenario be it a crime scene or civil cause. Like finger prints, lip prints are unique and distinguishable for every individual. But their relationship to personality types has not been established excepting the hypothesis stating that finger prints could explain these personality patterns.Aims:The study was aimed to record and correlate the lip and finger prints with that of character/personality of a person.Settings and Design:The lip and finger prints and character of a person were recorded and the data obtained was subjected for statistical analysis, especially for Pearson's Chi-square test and correlation/association between the groups was also studied.Materials and Methods:The study sample comprised of 200 subjects, 100 males and 100 females, aged between 18 and 30 years. For recording lip prints, brown/pink-colored lipstick was applied on the lips and the subjects were asked to spread uniformly over the lips. Lip prints were traced in the normal rest position on a plain white bond paper. For recording the finger prints, imprints of the fingers were taken on a plain white bond paper using ink pad. The collected prints were visualized using magnifying lens. To record the character of person, a pro forma manual for multivariable personality inventory by Dr. BC Muthayya was used.Statistical Analysis Used:Data obtained was subjected for statistical analysis, especially for Pearson's Chi-square test and correlation/association between the groups was also studied.Results:In males, predominant lip pattern recorded was Type I with whorls-type finger pattern and the character being ego ideal, pessimism, introvert, and dogmatic; whereas in females, predominant lip pattern recorded was Type II with loops-type finger pattern and the character being neurotic, need achievers, and dominant.Conclusion:Many studies on lip pattern, finger pattern, palatal rugae, etc., for individual identification and gender determination exist, but correlative studies are scanty. This is the first study done on correlating patterns, that is, lip and finger pattern with the character of a person. With this study we conclude that this correlation can be used as an adjunct in the investigatory process in forensic sciences.

The weak evidence of lip print analysis for sexual dimorphism in forensic dentistry: a systematic literature review and meta-analysis

“…One study 83 did not report which technique was used. In general, twenty-four studies (33%) 12 , 14 , 24 , 26 , 28 , 31 , 35 , 42 – 44 , 47 , 51 , 53 – 55 , 57 , 63 , 66 , 67 , 74 – 76 , 82 did not find evidence of difference of lip print patterns between males and females, while 67% 1 , 2 , 4 – 6 , 10 , 11 , 13 , 15 , 25 , 27 , 29 , 31 – 34 , 36 – 41 , 45 , 46 , 48 – 50 , 52 , 56 , 58 – 62 , 64 , 65 , 68 – 73 , 77 – 81 , 83 , 84 detected differences.…”

“…Fifty eligible studies 2 , 4 , 5 , 10 , 14 , 25 , 26 , 28 – 30 , 32 , 35 , 38 – 40 , 42 , 44 – 46 , 49 – 58 , 60 – 63 , 66 – 72 , 74 , 76 – 79 , 81 – 84 had low risk of bias, while 22 studies 1 , 6 , 11 – 13 , 15 , 24 , 27 , 31 , 33 , 36 , 37 , 41 , 43 , 47 , 48 , 59 , 64 , 65 , 73 , 75 , 80 had moderate risk of bias (Tables 3 and 4 ). All the questions in JBI tool for cross-sectional studies were applicable, while three questions were not applicable in the JBI tool for diagnostic test accuracy studies.…”

“…Regarding cross-sectional studies, questions #5 and #6 had a negative answer in 25 studies 6 , 11 – 13 , 15 , 24 , 26 , 27 , 30 , 31 , 33 , 35 , 36 , 39 , 41 , 43 , 47 , 50 , 55 , 57 , 64 , 66 – 68 , 71 , 73 , 83 . These questions verify if the study identified and avoided confounding factors, since studies should minimize the risk of bias describing factors that could influence on the process of collecting lip print evidence.…”

“…These questions verify if the study identified and avoided confounding factors, since studies should minimize the risk of bias describing factors that could influence on the process of collecting lip print evidence. In 28 studies 2 , 6 , 10 , 11 , 13 , 15 , 24 , 26 , 27 , 30 , 31 , 33 , 35 , 36 , 39 , 41 , 43 , 47 , 50 , 55 , 57 , 64 , 66 – 68 , 71 , 73 , 83 question #7 had a negative answer. This question has a direct impact in the quality of the evidence because it verifies if the outcomes were obtained in a reliable way.…”

The impact of time, environmental conditions, and sex on the degradation of bloody fingerprints on a glass surface

“…Dactyloscopy is the branch of forensics that deals with determining a person's identity by analyzing the configurations of friction ridges on the fingertips. These configurations (fingerprint patterns) are permanent and different for each person [1][2][3]. Research on fingerprint patterns is based on three basic principles-the invariability and permanence of friction ridges throughout a person's life and their uniqueness [4,5].…”