The decentralized and pseudonymous nature of cryptocurrencies like Bitcoin has made it easier for criminal entities to engage in illicit activities online compared to relying on traditional currency systems. Detecting these activities is vital to preventing and combating such abuse. We employ a data collection tool based on a Depth First Search algorithm to follow the largest receivers from 10 illicit starting addresses in each abuse type; Darknet, Blackmail, Tumbler, and Ransomware. The results from our two searches showed that money tends to be concentrated to one or two receivers and that all abuse types rely heavily on so-called Two-Transaction addresses. These addresses are only used once, likely as intermediaries to obfuscate money flow, potentially within the inner layer of Bitcoin Tumblers. The results also showed behaviors within the abuse types that were both consistent with and divergent from existing research. Furthermore, similarities and unique behaviors across the abuse types were identified. Expanding the dataset with deeper searches could yield clearer patterns in money flow behavior. Additionally, increasing the number of data collection points could enhance the analysis. Finally, the starting addresses significantly impacted the trustworthiness and reliability of our results. We hope our findings, lessons, and developed tools will aid future research and the development of strategies to combat online abuse.

My thesis deals with the problems of sexual abuse of children. It is divided into nine chapters, each of which has a subhead. In the first part, I focused on the term of child sexual abuse. In the second part, I focused on the problem of sexual abuse of children by family members. In the third part, I explained the term of commercial sexual violence committed against children. In the fourth part, I focused on the victims of sexual abuse and in the following part, I focused on the perpetrators. In the sixth part, I described the consequences of the abuse and in the seventh part, I described the therapy. I put a stress on the eighth part which deals with the sexual abuse prevention. The thesis ends with the ninth chapter where I described the moral crimes.

[ES] La presente tesis doctoral propone la arquitectura de un sistema de Geo-visualización Espaciotemporal de actividad delictiva y criminal, para ser aplicada a Sistemas de Comando y Control (C2S) específicamente dentro de sus Sistemas de Información de Comando y Control (C2IS). El sistema de Geo-visualización Espaciotemporal se basa en el análisis masivo de datos reales de actividad delictiva, proporcionado por la Policía Nacional Colombiana (PONAL) y está compuesto por dos aplicaciones diferentes: la primera permite al usuario geo-visualizar espaciotemporalmente de forma dinámica, las concentraciones, tendencias y patrones de movilidad de esta actividad dentro de la extensión de área geográfica y el rango de fechas y horas que se precise, lo cual permite al usuario realizar análisis e interpretaciones y tomar decisiones estratégicas de acción más acertadas; la segunda aplicación permite al usuario geo-visualizar espaciotemporalmente las predicciones de la actividad delictiva en periodos continuos y cortos a modo de tiempo real, esto también dentro de la extensión de área geográfica y el rango de fechas y horas de elección del usuario. Para estas predicciones se usaron técnicas clásicas y técnicas de Machine Learning (incluido el Deep Learning), adecuadas para el pronóstico en multiparalelo de varios pasos de series temporales multivariantes con datos escasos. Las dos aplicaciones del sistema, cuyo desarrollo se muestra en esta tesis, están realizadas con métodos novedosos que permitieron lograr estos objetivos de efectividad a la hora de detectar el volumen y los patrones y tendencias en el desplazamiento de dicha actividad, mejorando así la conciencia situacional, la proyección futura y la agilidad y eficiencia en los procesos de toma de decisiones, particularmente en la gestión de los recursos destinados a la disuasión, prevención y control del delito, lo cual contribuye a los objetivos de ciudad segura y por consiguiente de ciudad inteligente, dentro de arquitecturas de Sistemas de Comando y Control (C2S) como en el caso de los Centros de Comando y Control de Seguridad Ciudadana de la PONAL. / [CA] Aquesta tesi doctoral proposa l'arquitectura d'un sistema de Geo-visualització Espaitemporal d'activitat delictiva i criminal, per ser aplicada a Sistemes de Comandament i Control (C2S) específicament dins dels seus Sistemes d'informació de Comandament i Control (C2IS). El sistema de Geo-visualització Espaitemporal es basa en l'anàlisi massiva de dades reals d'activitat delictiva, proporcionada per la Policia Nacional Colombiana (PONAL) i està composta per dues aplicacions diferents: la primera permet a l'usuari geo-visualitzar espaitemporalment de forma dinàmica, les concentracions, les tendències i els patrons de mobilitat d'aquesta activitat dins de l'extensió d'àrea geogràfica i el rang de dates i hores que calgui, la qual cosa permet a l'usuari fer anàlisis i interpretacions i prendre decisions estratègiques d'acció més encertades; la segona aplicació permet a l'usuari geovisualitzar espaciotemporalment les prediccions de l'activitat delictiva en períodes continus i curts a mode de temps real, això també dins l'extensió d'àrea geogràfica i el rang de dates i hores d'elecció de l'usuari. Per a aquestes prediccions es van usar tècniques clàssiques i tècniques de Machine Learning (inclòs el Deep Learning), adequades per al pronòstic en multiparal·lel de diversos passos de sèries temporals multivariants amb dades escasses. Les dues aplicacions del sistema, el desenvolupament de les quals es mostra en aquesta tesi, estan realitzades amb mètodes nous que van permetre assolir aquests objectius d'efectivitat a l'hora de detectar el volum i els patrons i les tendències en el desplaçament d'aquesta activitat, millorant així la consciència situacional , la projecció futura i l'agilitat i eficiència en els processos de presa de decisions, particularment en la gestió dels recursos destinats a la dissuasió, prevenció i control del delicte, la qual cosa contribueix als objectius de ciutat segura i per tant de ciutat intel·ligent , dins arquitectures de Sistemes de Comandament i Control (C2S) com en el cas dels Centres de Comandament i Control de Seguretat Ciutadana de la PONAL. / [EN] This doctoral thesis proposes the architecture of a Spatiotemporal Geo-visualization system of criminal activity, to be applied to Command and Control Systems (C2S) specifically within their Command and Control Information Systems (C2IS). The Spatiotemporal Geo-visualization system is based on the massive analysis of real data of criminal activity, provided by the Colombian National Police (PONAL) and is made up of two different applications: the first allows the user to dynamically geo-visualize spatiotemporally, the concentrations, trends and patterns of mobility of this activity within the extension of the geographic area and the range of dates and times that are required, which allows the user to carry out analyses and interpretations and make more accurate strategic action decisions; the second application allows the user to spatially visualize the predictions of criminal activity in continuous and short periods like in real time, this also within the extension of the geographic area and the range of dates and times of the user's choice. For these predictions, classical techniques and Machine Learning techniques (including Deep Learning) were used, suitable for multistep multiparallel forecasting of multivariate time series with sparse data. The two applications of the system, whose development is shown in this thesis, are carried out with innovative methods that allowed achieving these effectiveness objectives when detecting the volume and patterns and trends in the movement of said activity, thus improving situational awareness, the future projection and the agility and efficiency in the decision-making processes, particularly in the management of the resources destined to the dissuasion, prevention and control of crime, which contributes to the objectives of a safe city and therefore of a smart city, within architectures of Command and Control Systems (C2S) as in the case of the Citizen Security Command and Control Centers of the PONAL. / Salcedo González, ML. (2023). Arquitectura de un sistema de geo-visualización espacio-temporal de actividad delictiva, basada en el análisis masivo de datos, aplicada a sistemas de información de comando y control (C2IS) [Tesis doctoral]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/192685

Omissions in Crimial Law Abstract The submitted thesis represents a relatively comprehensive, and given the contemporary state of the domestic criminal law theory, also a quite complex elaboration of questions associated with the phenomenon of omission in criminal law. From my point of view, the text itself deals with all significant problems related to criminal liability for omissive conduct. This concerns in particular the subject matter associated with the institution of omission within the doctrine of substantive criminal law, the term of omission in criminal law and the reason and historical evolution of criminalization of omission. Furthermore, the thesis deals with the individual types of criminal omissions and questions associated therewith, including a note of the differences between the traditional dual distinction on the one hand and the newer triple distinction of criminal omissions on the other, while comprising the emphasis of shortcomings of the traditional approach and the advantages of the newer concept. Saying that, in the most part the thesis focuses on the newer approach towards criminal liability for omission and it describes the foundation points thereof in great detail, since I consider it to be the key subject of this dissertation. I also comment on the very important subject of...

Money laundering involves activities which are aimed at concealing benefits that were acquired through criminal means for the purpose of making them appear legitimately acquired. Money laundering promotes criminal activities in South Africa because it allows criminals to keep the benefits that they acquired through their criminal activities. It takes place through a variety of schemes which include the use of banks. In this sense money laundering control is based on the premise that banks must be protected from providing criminals with the means to launder the benefits of their criminal activities. The Financial Intelligence Centre Act 38 of 2001 (‘FICA’) in aggregate with the Prevention of Organised Crime Act 121 of 1998 (‘POCA’) form the backbone of South Africa’s anti-money laundering regime. Like its international counterparts FICA imposes onerous duties on banks seeing that they are most often used by criminals as conduits to launder the benefits of crime. In turn, POCA criminalises activities in relation to the benefits of crime and delineates civil proceedings aimed at forfeiting the benefits of crime to the state. This study identifies the idiosyncrasies of the South African anti-money laundering regime and forwards recommendations aimed at improving its structure. To this end nine issues in relation to money laundering control and banks are investigated. The investigation fundamentally reveals that money laundering control holds unforeseen consequences for banks. In particular, a bank that receives the benefits of crimes such as fraud or theft faces prosecution if it fails to heed FICA’s money laundering control duties, for example, the filing of a suspicious transaction report. However, if the bank files a suspicious transaction report, it may be sued in civil court by the customer for breach of contract. In addition, if the bank parted with the benefits of fraud or theft whilst suspecting that the account holder may not be entitled to payment thereof, it may be sued by the victim of fraud or theft who seeks to recover loss suffered at the hand of the fraudster or thief from the bank. Ultimately, this study illustrates that amendment of some of the provisions of South Africa’s anti-money laundering legislation should enable banks to manage the aforementioned and other unforeseen consequences of money laundering control whilst at the same time contribute to the South African anti-money laundering effort. / Criminal and Procedural Law / Mercantile Law / LL.D.

Money laundering involves activities which are aimed at concealing benefits that were acquired through criminal means for the purpose of making them appear legitimately acquired. Money laundering promotes criminal activities in South Africa because it allows criminals to keep the benefits that they acquired through their criminal activities. It takes place through a variety of schemes which include the use of banks. In this sense money laundering control is based on the premise that banks must be protected from providing criminals with the means to launder the benefits of their criminal activities. The Financial Intelligence Centre Act 38 of 2001 (‘FICA’) in aggregate with the Prevention of Organised Crime Act 121 of 1998 (‘POCA’) form the backbone of South Africa’s anti-money laundering regime. Like its international counterparts FICA imposes onerous duties on banks seeing that they are most often used by criminals as conduits to launder the benefits of crime. In turn, POCA criminalises activities in relation to the benefits of crime and delineates civil proceedings aimed at forfeiting the benefits of crime to the state. This study identifies the idiosyncrasies of the South African anti-money laundering regime and forwards recommendations aimed at improving its structure. To this end nine issues in relation to money laundering control and banks are investigated. The investigation fundamentally reveals that money laundering control holds unforeseen consequences for banks. In particular, a bank that receives the benefits of crimes such as fraud or theft faces prosecution if it fails to heed FICA’s money laundering control duties, for example, the filing of a suspicious transaction report. However, if the bank files a suspicious transaction report, it may be sued in civil court by the customer for breach of contract. In addition, if the bank parted with the benefits of fraud or theft whilst suspecting that the account holder may not be entitled to payment thereof, it may be sued by the victim of fraud or theft who seeks to recover loss suffered at the hand of the fraudster or thief from the bank. Ultimately, this study illustrates that amendment of some of the provisions of South Africa’s anti-money laundering legislation should enable banks to manage the aforementioned and other unforeseen consequences of money laundering control whilst at the same time contribute to the South African anti-money laundering effort. / Criminal and Procedural Law / Mercantile Law / LL.D.