Glass on clothing and shoes of members of the general population and people suspected of breaking crimes

The level of random background glass recovered from fleece jackets of individuals who worked in Law enforcement or related professions

“…No broken glass Broken glass Petterd et al [10] Lau et al [11] McQuillian et al [8] Ross et al [13] Coulson et al [9] Lambert et al [ reported in previous studies, however the numbers of fragments within individual groups present were more akin to data produced from studies involving individuals suspected of activities involving broken glass.…”

“…A summary of comparisons to the studies of McQuillian et al [8], Coulson et al [9], Pettard et al [10], Lau et al [11], Lambert et al [12] and Ross et al [13] is presented in Table 3.…”

“…In order to do this in a meaningful way, an understanding of the prevalence of glass fragments on for example, clothing from the general population and clothing of those suspected of criminal activity both involving and not involving glass breaking is required. Previous research in the area can be presented as either general population surveys, where the issue becomes the determination of the prevalence of glass on a member of the publics clothing [7][8][9][10][11] and surveys relating to the determination of the amount of glass recovered from clothing of those suspected of criminal activity related to activities where glass breaking could be involved [8,9,12] and where the activity was not thought to involve breaking glass. [13] The general consensus of this work was, that while glass was recovered from clothing worn by the public was generally less than from clothing taken from individuals suspected of criminal activity.…”

“…In presenting the results obtained and so that they can be compared with previous studies we have adopted the approach of Coulson et al [9] and compared published P (number of groups of glass fragments present) and S (number of fragments within each group). Glass Background level Law enforcement Related personnel A B S T R A C T Fleece jackets are often encountered as items of clothing submitted for examination in forensic science laboratories in Scotland.…”

The migration of fragments of glass from the pockets to the surfaces of clothing

“…The number of groups of glass recovered from the surfaces of a garment and the size of any group matching the glass object broken at the scene are crucial when evaluating glass evidence at source or activity level using the Bayesian approach [1,2]. At source level, however, only the number of groups present is important.…”