Night-time economy (NTE) leisure zones, while providing local economic growth and positive social experiences, are hotspots for urban public violence. Research aimed at better understanding and thus reducing this violence has employed a range of empirical methods: official records, self-reports, experiments, and observational techniques. In this paper, we review the applications of these methodologies for analyzing NTE violence on key research dimensions, including mapping incidents across time and space; interpreting the motivations and meaning of violence; identifying social psychological background variables and health consequences; and the ability to examine mid-violent interactions. Further, we assess each method in terms of reliability, validity, and the potential for establishing causal claims. We demonstrate that there are fewer and less established methodologies available for examining the interactional dynamics of NTE violence. Using real-life NTE bystander intervention as a case example, we argue that video-based behavioral analysis is a promising method to address this gap. Given the infancy and relative lack of exposure of the video observational method, we provide recommendations for scholars interested in adopting this technique.

The new drug markets emerging on the dark net (TOR) have reduced earlier drug market risk factors such as visibility and violence. This study uses economic sociology and transaction cost economics to broaden the present understanding of cryptomarkets. Results focus on three coordination problems characterising illegal markets and how they are alleviated in cryptomarkets. More information and better visibility increase competition, the feedback system enforces cooperation and border control introduces a new cost influencing valuation. Cryptomarkets are formally structured and regulated by rules of conduct and centralised decisions. We argue that the online context circumvents earlier coordination problems in illegal markets, making dark net markets more structurally efficient compared to conventional drug markets.

A growing share of illicit drug distribution takes place using cryptomarkets that use encryption and anonymization technologies. The risks of law enforcement intervention and violence are lower here than in off-line traditional drug markets, but with the technological innovations follow new opportunities for stealing and fraud. The sites themselves fall prey to theft and hacking attempts, administrators abscond with users’ funds, and malicious sellers regularly cheat buyers. In this study, we explore the types of theft and fraud that occur on cryptomarkets using multiple data sources: formalized community resources (e.g., guides, tutorials), ethnographic observations of user forums, thematic identification of forum posts using unsupervised text classification, and an expert interview. We find system-based violent predatory resource exchange similar to robberies and process-based fraudulent resource exchange similar to rip-offs. We discuss these offenses conceptually as extensions of common drug-related crimes in the digital world. This contributes to the research on how cryptomarkets work and can improve crime-prevention efforts.

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A recent change in Danish cannabis control policy has had significant implications for the structure of the retail-level cannabis market in Copenhagen. A process of restructuring following an crackdown on 'Pusher Street' has involved at least four people getting shot and killed in what police describe as struggles for market shares. Combating the retail cannabis market was a top three priority for the Copenhagen police. The shift in policy started in 2004 when possession for personal use was up-penalized, from a discriminatory warning to an obligatory fine of 70 euros which was quadrupled in 2007. The law was immediately followed by an extensive police crackdown on Christiania's open retail-market. Christiania has had a cannabis market for 32 years. As cannabis use rates rose throughout the '90's the market flourished. On a given day it's estimated turnover was around 20 k, about twothirds of the total market in Copenhagen. On the 16th of May 2004 police raided 'Pusher Street' and arrested 60 dealers and their helpers along with 20 people accused of forming an organized lookout corps. After the initial raid police implemented a zero-tolerance zone in the area and targeted users in a deterrent effort issuing a total of 4834 fines in a year. Maintaining the zero tolerance zone has so far involved 12 big confrontations with the inhabitants of Christiania. 114 police officers have been injured and 29 formal complaints of police conduct have been lodged with the State Attorney. Following the crackdown the cannabis market adapted by dispersing and applying new methods for retail dealing