Replacing Synperonic® N in the physical developer fingermark visualisation process: Pseudo-operational trial and parameter studies

Autor: Zi Ying Guo, Vaughn G. Sears, Laura J. Hussey, Emily M. Cartledge, Stephen M. Bleay

Publikováno v: Forensic science international. 326

A reformulated physical developer (PD) solution has been devised to replace the use of Synperonic® N for environmental reasons. The performance of the replacement solution has proved promising in laboratory trials using planted fingermarks [1] howev

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4ac294562e38043d4ddba46dc39ef1c
https://pubmed.ncbi.nlm.nih.gov/34325114

Replacing Synperonic® N in the Physical Developer fingermark visualisation process: Reformulation

Autor: Laura J. Hussey, Jodie Coulston, Vaughn G. Sears, Megan Harmsworth, A. Robert Hillman, Zi Ying Guo, Robert Luck, Amelia Thomas-Wilson

Publikováno v: Thomas-Wilson, A, Guo, Z Y, Luck, R, Hussey, L J, Harmsworth, M, Coulston, J L, Hillman, A R & Sears, V G 2021, ' Replacing Synperonic® N in the Physical Developer fingermark visualisation process: reformulation ', Forensic Science International, vol. 323, 110786, pp. 1-14 . https://doi.org/10.1016/j.forsciint.2021.110786

The Physical Developer solution currently recommended for use in the United Kingdom for fingermark visualisation uses two surfactants: n-dodecylamine acetate (nDDAA) and Synperonic® N. Synperonic® N is covered by the EU directive 82/242/EEC, which

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59fa80dbb1843dbb1b3df39aee2b4b66
https://pubmed.ncbi.nlm.nih.gov/35305842

A validation study of the 1,2-indandione reagent for operational use in the UK: Part 3—Laboratory comparison and pseudo-operational trials on porous items

Autor: Aoife Luscombe, Vaughn G. Sears

Publikováno v: Forensic Science International. 292:254-261

Laboratory trials, followed by a comparative pseudo-operational trial of a 1,2-indandione/zinc formulation and 1,8-diazafluoren-9-one (DFO) was carried out on a range of realistically-handled papers, card and cardboard. In laboratory trials over 7500

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35f29e41b86716c8606b71d2e5340d5b
https://doi.org/10.1016/j.forsciint.2018.04.042

A validation study of the 1,2-indandione reagent for operational use in the UK: Part 2 — Optimization of processing conditions

Autor: Vaughn G. Sears, Rory Downham, Rachel-May Dyer, Niko Nicolasora, Aoife Luscombe, Laura Hussey

Publikováno v: Forensic Science International. 288:266-277

This paper contains details of work carried out to identify the most effective processing conditions for the optimized 1,2-indandione/zn formulation developed for use under UK conditions. Using direct measurements of fluorescence taken from test spot

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3b19073a42b4e93a4693a15eec4b390
https://doi.org/10.1016/j.forsciint.2018.04.044

Migration of latent fingermarks on non-porous surfaces: Observation technique and nanoscale variations

Autor: Vaughn G. Sears, Krastio T. Popov, Benjamin Jones

Publikováno v: Popov, K T, Sears, V G & Jones, B J 2017, ' Migration of latent fingermarks on non-porous surfaces : Observation technique and nanoscale variations ', Forensic Science International, vol. 275, pp. 44-56 . https://doi.org/10.1016/j.forsciint.2017.02.015

Latent fingermark morphology was examined over a period of approximately two months. Variation in topography was observed with atomic force microscopy and the expansion of the fingermark occurred in the form of the development of an intermediate area

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3aa76217220a9a1f05c48d2aab1c6376
https://doi.org/10.1016/j.forsciint.2017.02.015