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Firearm-related interpersonal violence is a leading cause of death and injury in cities across the United States, and understanding the movement of firearms from on-the-books sales to criminal end-user is critical to the formulation of gun violence prevention policy. In this study, we assemble a unique dataset that combines records for over 380,000 crime guns recovered by law enforcement in California (2010-2021), and more than 126,000 guns reported stolen, linked to in-state legal handgun transactions (1996-2021), to describe local and statewide crime gun trends and investigate several potentially important sources of guns to criminals, including privately manufactured firearms (PMFs), theft, and "dirty" dealers. We document a dramatic increase over the decade in firearms recovered shortly after purchase (7% were recovered within a year in 2010, up to 33% in 2021). This corresponds with a substantial rise in handgun purchasing over the decade, suggesting some fraction of newly and legally acquired firearms are likely diverted from the legal market for criminal use. We document the rapid growth of PMFs over the past 2-3 years and find theft plays some, though possibly diminishing, role as a crime gun source. Finally, we find evidence that some retailers contribute disproportionately to the supply of crime guns, though there appear to be fewer problematic dealers now than there were a decade ago. Overall, our study points to temporal shifts in the dynamics of criminal firearms commerce as well as significant city variation in the channels by which criminals acquire crime guns., (© 2023. The Author(s).)

Air pollution has a severe impact on human physical and mental health. When the air quality is poor enough to cause respiratory irritation, people tend to stay home and avoid any outdoor activities. In addition, air pollution may cause mental health problems (depression and anxiety) which were associated with high crime risk. Therefore, in this study, it is hypothesized that increasing air pollution level is associated with higher indoor crime rates, but negatively associated with outdoor crime rates because it restricts people's daily outdoor activities. Three types of crimes were used for this analysis: robbery (outdoor crime), domestic violence (indoor crime), and fraud (cybercrime). The results revealed that the geographically and temporally weighted regression (GTWR) model performed best with lower AIC values. In general, in the higher population areas with more severe air pollution, local authorities should allocate more resources, extra police officers, or more training programs to help them prevent domestic violence, rather than focusing on robbery., Competing Interests: The authors have declared that no competing interests exist.

Background: Ordinances requiring the implementation of robbery prevention measures have been enacted at the city level in many jurisdictions. We evaluated the impact of an ordinance requiring crime prevention measures on subsequent crime rates., Methods: Crime reports for robbery and aggravated assault from January 2006 through December 2015 were linked to randomly-selected convenience stores and small retail grocers in Houston (n = 293). Store characteristics and compliance with a list of safety measures were collected by surveyors in 2011. Generalized linear mixed models were used to compare rates of crime before and after the implementation of the ordinance., Results: Robberies decreased significantly after the ordinance went into effect (rate ratio = 0.38; 95% confidence interval 0.29-0.51). No individual safety measure was associated with decreased robbery rates. No similar decrease was observed for aggravated assault., Conclusions: City ordinances mandating crime prevention measures can be effective. We could not parse out the effectiveness of individual elements, suggesting a comprehensive approach may be more effective., (© 2021 Wiley Periodicals LLC.)

In the continuous development of computer network technology, multimedia technology and information technology, digitization has become the main means of displaying information, thus facilitating the storage, copying and dissemination of digital multimedia information. In this context, there are no restrictions on arbitrary editing, copying, modification, and dissemination of digital images, music, etc., which leads to various social problems such as information security, copyright disputes, and piracy. With the advancement of networks and multimedia, digital watermarking technology has received worldwide attention as an effective method of copyright protection. Improving the anti-geometric attack ability of digital watermarking algorithms using image feature-based algorithms have received extensive attention. This paper proposes a novel robust watermarking algorithm based on SURF-DCT perceptual hashing (Speeded Up Robust Features and Discrete Cosine Transform), namely blind watermarking. The algorithm firstly uses the affine transformation with a feature matrix and chaotic encryption technology to preprocess the watermark image, enhance the confidentiality of the watermark, and perform block and DCT coefficients extraction on the carrier image, and then uses the positive and negative quantization rules to modify the DCT coefficients. The embedding of the watermark is completed, and the blind extraction of the watermark realized. Experiments show that the algorithm has good invisibility and strong robustness against conventional and geometric attacks and can effectively protect the security of images with NC value more than 90%., Competing Interests: The authors have no competing interests exists.

Corporate espionage is a multifaceted problem causing hundreds of billions of dollars in losses to businesses each year. Health care managers have a wide variety of options available to prevent theft of their organizations' trade secrets and other proprietary information. Organizations should protect their confidential and trade secret information by taking various security measures to limit access to protected material and by using appropriate types of restrictive covenants such as nondisclosure, noncompetition, and nonsolicitation agreements. This article provides helpful guidance for managers to maximize protection against theft of proprietary information.

Drug losses and theft from the healthcare system are accelerating; hospitals are pressured to implement safeguards to prevent drug diversion. Thus far, no reviews summarize all known risks and potential safeguards for hospital diversion. Past incidents of hospital drug diversion have impacted patient and staff safety, increased hospital costs, and resulted in infectious disease outbreaks. We searched MEDLINE, Embase, PsycINFO, CINAHL, Scopus, and Web of Science databases and the gray literature for articles published between January 2005 and June 2018. Articles were included if they focused on hospital settings and discussed either: (1) drug security or accounting practices (any drug) or (2) medication errors, healthcare worker substance use disorder, or incident reports (only with reference to controlled drugs). We included 312 articles and extracted four categories of data: (1) article characteristics (eg, author location), (2) article focus (eg, clinical areas discussed), (3) contributors to diversion (eg, factors enabling drug theft), and (4) diversion safeguards. Literature reveals a large number of contributors to drug diversion in all stages of the medication-use process. All health professions and clinical units are at risk. This review provides insights into known methods of diversion and the safeguards hospitals must consider to prevent them. Careful configuration of healthcare technologies and processes in the hospital environment can reduce the opportunity for diversion. These system-based strategies broaden the response to diversion beyond that of individual accountability. Further evidence is urgently needed to address the vulnerabilities outlined in this review and prevent harm.

Challenging behaviors involving food are common for individuals with Prader-Willi syndrome (PWS) and often lead to obesity and other chronic health conditions. Efforts to decrease these behaviors, such as isolation during meals and strict monitoring of food consumption, can be stigmatizing. To decrease the food stealing of a 7 year-old girl with PWS, therapists conducted a latency-based functional analysis in a clinic setting before implementing a function-based intervention to facilitate her inclusion at the family dinner table. Intervention components entailed differential reinforcement procedures which incorporated a token board and schedule thinning. The intervention successfully generalized to the home setting and across food preferences and implementers.

Objective: To compare implementation of robbery prevention strategies between gas station/convenience stores with liquor stores/grocery stores/pharmacies, restaurants/bars, and other retail businesses., Methods: One hundred forty-nine retail businesses were evaluated by police personnel across four police departments for adherence to robbery prevention strategies. Assessment of these strategies occurred between November 2012 and October 2014. Implementation of these strategies were compared across business types using logistic regression., Results: Liquor/grocery stores/pharmacies and restaurants/bars were less likely to have a high site assessment score for robbery prevention elements when compared with gas station/convenience stores., Conclusions: Non-gas station/convenience stores require stronger consideration when developing robbery prevention programs and policies to assure appropriate implementation of robbery prevention strategies.

Medical practices are a ripe target for embezzlement.

In this article, we test whether an isolated information campaign can deter criminals by appealing to their apprehension risk perception. A randomized trial was conducted around 154 high crime housing blocks in Bogotá. With support of the Colombian Police, half of the blocks were exposed to a three month poster campaign reporting the number of "arrests around this street block" and half to a no-treatment control condition. The main outcome measure (total registered crime) and secondary outcome measures (calls to the emergency line for thefts and attacks, and minor wrongdoings) were provided by the Police. Additionally, trust in police, security perception, and police performance perception were measured among residents and workers in the treatment and control areas (N = 616) using a post-treatment survey. Measures were analyzed with linear regression analysis and two-sample t-tests. Over the course of the treatment period, premeditated crime was reduced, while spontaneous crime remained unchanged. Overall levels of crime were not significantly altered. Also, a moderate crime reduction is detectable during the first month of the treatment period. The posters were highly visible (93% of respondents in the treated areas recalled them) and positively received (67% "liked" them). Perceptions of security and police among locals improved, though not significantly. Inherent among residents of Bogotá is a pervasive feeling of impunity and low trust in authorities, making the city a hard test case for an offender-targeted advertising campaign. Initial reductions of crime and overall reductions of premeditated crime are thus noteworthy. These results align with key principles of apprehension risk updating theory., Competing Interests: Ervyn Norza Céspedes, second author of this manuscript, is in addition to his scholarly activity at Universidad de los Andes a member of the Colombian National Police which made in-kind contributions to this study. However, the study was autonomously designed, executed and analyzed by the authors and carried out without any influence from the National Police. The Police is interested in the results but had no prior expectation or interest with regard to the direction of the results. The rigor of the study is thus not affected by Norza's affiliation with one of the contributing organizations. This does not alter our adherence to PLOS ONE policies on sharing data and materials.

Some law enforcement officials and other observers have asserted that theft is the primary source of guns to crime. In fact, the role of theft in supplying the guns used in robbery, assault, and murder is unknown, and current evidence provides little guidance about whether an effective program to reduce gun theft would reduce gun violence. The current article analyzes publicly available national data on gun theft together with a unique data set for Chicago. The results tend to support a conclusion that stolen guns play only a minor role in crime. First, publicly available data are used to calculate that thefts are only about 1% of all gun transactions nationwide. Second, an analysis of original data from Chicago demonstrates that less than 3% of crime guns recovered by the police have been reported stolen to the Chicago Police Department (CPD). If a gun is reported stolen, there is a 20% chance that it will be recovered, usually in conjunction with an arrest for illegal carrying. Less than half of those picked up with a stolen gun have a criminal record that includes violent offenses. Third, results from surveys of convicted criminals, both nationally and in Chicago, suggest that it is rare for respondents to have stolen the gun used in their most recent crime. The data on which these results are based have various shortcomings. A research agenda is proposed that would provide more certainty about the role of theft.

Drug diversion by healthcare personnel poses substantial and growing risks to patients, staff, healthcare institutions and the community, the author reports. It is essential that clinical, pharmacy, and security personnel work together on diversion-related issues to reduce those risks, she says. In this article she spells out the critical roles of security personnel in the investigation of suspected diversion and the response to confirmed diversion.

The New York Police Department (NYPD) under Operation Impact deployed extra police officers to high crime areas designated as impact zones. Officers were encouraged to conduct investigative stops in these areas. City officials credited the program as one of the leading causes of New York City's low crime rate. We tested the effects of Operation Impact on reported crimes and arrests from 2004 to 2012 using a difference-in-differences approach. We used Poisson regression models to compare differences in crime and arrest counts before and after census block groups were designated as impact zones compared to census block groups in the same NYPD precincts but outside impact zones. Impact zones were significantly associated with reductions in total reported crimes, assaults, burglaries, drug violations, misdemeanor crimes, felony property crimes, robberies, and felony violent crimes. Impact zones were significantly associated with increases in total reported arrests, arrests for burglary, arrests for weapons, arrests for misdemeanor crimes, and arrests for property felony crimes. Impact zones were also significantly associated with increases in investigative stops for suspected crimes, but only the increase in stops made based on probable cause indicators of criminal behaviors were associated with crime reductions. The largest increase in investigative stops in impact zones was based on indicators of suspicious behavior that had no measurable effect on crime. The findings suggest that saturating high crime blocks with police helped reduce crime in New York City, but that the bulk of the investigative stops did not play an important role in the crime reductions. The findings indicate that crime reduction can be achieved with more focused investigative stops.

Background: Robbery-related homicides and assaults are the leading cause of death in retail businesses. Robbery reduction approaches focus on compliance to Crime Prevention Through Environmental Design (CPTED) guidelines., Purpose: We evaluated the level of compliance to CPTED guidelines specified by convenience store safety ordinances effective in 2010 in Dallas and Houston, Texas, USA., Methods: Convenience stores were defined as businesses less than 10 000 square feet that sell grocery items. Store managers were interviewed for store ordinance requirements from August to November 2011, in a random sample of 594 (289 in Dallas, 305 in Houston) convenience stores that were open before and after the effective dates of their city's ordinance. Data were collected in 2011 and analysed in 2012-2014., Results: Overall, 9% of stores were in full compliance, although 79% reported being registered with the police departments as compliant. Compliance was consistently significantly higher in Dallas than in Houston for many requirements and by store type. Compliance was lower among single owner-operator stores compared with corporate/franchise stores. Compliance to individual requirements was lowest for signage and visibility., Conclusions: Full compliance to the required safety measures is consistent with industry 'best practices' and evidence-based workplace violence prevention research findings. In Houston and Dallas compliance was higher for some CPTED requirements but not the less costly approaches that are also the more straightforward to adopt., (Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/)

It is estimated that approximately one in six physicians will be the victim of embezzlement at least once during his or her lifetime. This may be due to the trusting nature of physicians, a lack of business training about separating duties in transactions involving money, or employees' feeling overworked, underpaid, or underappreciated. The best protection against embezzlement is prevention. This article informs the reader of the steps to take to prevent stealing in the medical office, how to recognize if it is occurring, and how to obtain restitution or prosecution.

Medical practices are often faced with employee embezzlement and theft. To protect themselves and their practices, physicians and practice executives should have in place policies and procedures for identifying and handling unethical behaviors by employees. This article deals with the common risks in healthcare practices and provides suggestions to help mitigate the risk of embezzlement.

Data loss/leakage protection (DLP) technology seeks to improve data security by answering three fundamental questions: > Where are confidential data stored? > Who is accessing the information? > How are data being handled?

Background: Police agencies around the country are implementing various strategies to reduce crime in their communities that need to be evaluated. These strategies are often based on systematic crime analysis and are focused on crime occurring in hot spots, which are areas of disproportionate amounts of crime., Objective: This article takes a practice-based research approach to evaluate whether evidence-based police strategies implemented by one police agency as its normal everyday crime reduction practice are effective in reducing residential burglary incidents in micro-time hot spots., Research Design: A quasi-experimental ex post facto design is employed using 5 years of data from one police agency that has institutionalized the identification and response to micro-time hot spots into its day-to-day practices. Propensity score matching is used to match 54 pairs of micro-time hot spots using logistic regression to compute the propensity scores and greedy 1 to 1 matching with a caliper width of 0.5 of the standard deviation of the logit to match the cases., Results: Independent t-tests show that tactical police response to micro-time hot spots can lead to significant reductions in residential burglary incidents without the spatial displacement of crime., Conclusion: Tactical police responses that seek to achieve short-term reductions in crime appear to be well suited for micro-time hot spots since they are, by nature, short term. Importantly, the conclusions are based on the evaluation of an agency's systematic implementation of the evidence-based practices as its normal practices and not for the sake of research., (© The Author(s) 2015.)

Breaches of confidential patient information are proliferating and the culprits are more sophisticated and sinister than ever. Hospitals and health systems are using smarter and faster tactics to stay one step ahead of the bad guys.

This study examined burglary victimization in Taiwan with an application of the structure-choice model that included four theoretical dimensions: proximity to crime, exposure to crime, target attractiveness, and guardianship. Drawing on the 2000 Taiwan Areas Criminal Victimization Survey, the results of the current study showed a moderate effect of the opportunity model on Taiwan's burglary victimization. Also, this study found both consistent and conflicting findings in the current data. The null effect of motorcycles (including scooters) that represented the concept of target attractiveness in relation to burglary risk reflected a difference in population density and transportation needs between Taiwan and the West. Clearly, the role of social context needs to be understood when studies apply a Western model to a non-Western context., (© The Author(s) 2014.)

Background: Small retail businesses experience high robbery and violent crime rates leading to injury and death. Workplace violence prevention programs (WVPP) based on Crime Prevention Through Environmental Design reduce this risk, but low small business participation limits their effectiveness. Recent dissemination models of occupational safety and health information recommend collaborating with an intermediary organization to engage small businesses., Methods: Qualitative interviews with 70 small business operators and 32 representatives of organizations with small business influence were conducted to identify factors and recommendations for improving dissemination of a WVPP., Results: Both study groups recommended promoting WVPPs through personal contacts but differed on other promotion methods and the type of influential groups to target. Small business operators indicated few connections to formal business networks., Conclusions: Dissemination of WVPPs to small businesses may require models inclusive of influential individuals (e.g., respected business owners) as intermediaries to reach small businesses with few formal connections., (© 2015 Wiley Periodicals, Inc.)

Using a sample of sixth graders in 11 public schools in a large Southwestern city, this longitudinal study examined how a model substance use prevention program, keepin' it REAL, that was implemented in 7th grade, influenced three other problem behaviors (fighting, weapon use, stealing), measured in 8th grade. Using a non-equivalent control group design, we compared 259 students in the intervention to 322 students in a treatment-as-usual condition. At baseline, 37% of the sample reported fighting in the last 30 days; 31% reported stealing in the last 30 days, and 16% reported using a weapon in the last 30 days. Regression analyses adjusted for students nested in schools through multi-level modeling and for missing data through multiple imputation. We found that at posttest the rates of all three behaviors were lower in the intervention group than the control group at posttest: 35 versus 37% got into a fight in the last 30 days; 24 versus 31% stole something in the last 30 days; and 16 versus 25% used a weapon in the last 30 days. The program impact for fighting and stealing was not statistically significant and involved minimal effect sizes. The program impact for weapon use was not statistically significant but had an effect size comparable to that for other problem behavior interventions. Promoting positive development via life skills may be a key to broadening program impact.

Background and Overview: Dentists have much invested in their practices. They need to protect their practices from fraud and noncompliance. The author provides practical suggestions for how to significantly reduce the risk of fraud and theft in the practice without disrupting day-to-day operations., Conclusions: By adhering to nonintrusive policy and procedure changes, dental practice owners can reduce inherent risks of fraud and theft, while increasing financial and human resource knowledge regarding their practice., Practical Implications: Practice owners with the appropriate policies and procedures benefit from significantly lower risk of loss from fraud and theft. Furthermore, they have a better understanding of their practice's finances and human resources., (Copyright © 2015 American Dental Association. Published by Elsevier Inc. All rights reserved.)

Medical identity theft has become increasingly prevalent. Medical practices need to take action and have policies and procedures in place to prevent data breaches. This will protect both the patient and the practice from medical identity theft.