Enhancing contrast of fingerprints on plastic tape

Many of the currently available fingerprinting methods have limited ability to visualize fingerprints on plastic tape without expensive equipment or significant handling of the sample. This is especially true for visualizing fingerprints on black electrical tape. This study sought a hands-off method to produce easy visualization of fingerprints on different types of plastic tape, including black electrical tape, without the need for expensive equipment. The methods selected were to sublime disperse dyes into the tape, both with and without the fuming of cyanoacrylate, everywhere except for where the fingerprint was applied. The resulting color contrasts provided enough differentiation to visualize fingerprints on plastic tape under ambient light. Sequential fuming with cyanoacrylate followed by disperse dyes provided the best visualizations on all tapes, and cyanoacrylate followed by disperse yellow 211 clearly visualized fingerprints on black electrical tape.     

Institutional trustworthiness and national security governance: Evidence from six European countries

This article examines the relationship between the institutional trustworthiness of security agencies in the context of data‐intensive security practices. It focuses on the public's acceptance of the way digital surveillance technologies feed into large‐scale security data analytics. Using the case of deep packet inspection (DPI), survey data gathered in six European countries (n = 1,202) demonstrates that security agencies' institutional trustworthiness directly and indirectly influences public acceptance of DPI. Against a backdrop of declining public trust in government and a climate of intense international terrorist threat, governments around the world are appealing to citizens to trade privacy for enhanced security. This article supports calls for security agencies and their respective governments to engage with the democratic process to enrich security and privacy at all levels of public security governance and for the common good.