Problems of recidivism; sentencing dispositions imposed on mentally abnormal offenders; recidivism in penal and administrative law; sentencing practice of the Slovenian courts; criminal law protection of property in different legal systems; criminal liability of doctors and other medical staff in contemporary criminal law systems; the position of mentally abnormal offenders in contemporary criminal law; application of criminological diagnoses in Yugoslavia; economic offences in a positive criminal law and the need of reform; the role of public prosecutor and defence lawyer in criminal proceedings involving juveniles; analysis of penalties provided for by the criminal code and those imposed on offenders by courts; protection of the right to privacy in penal law; criminal law aspects of political crimes; participation of citizens in criminal justice; legal remedies in criminal proceedings; system analysis of pre-trial and criminal proceedings; repression and public opinion; legal and criminological aspects of sentencing; international criminal law; legal aspects of drug-related crimes; police, public prosecutors and the success within criminal investigations; basic principles of criminal procedure law in the digital age; psychological mechanisms in criminal justice; automated justice in criminal justice systems.

Problems of crime prevention; relationship between criminological research and criminal policy; criminal policy within the road traffic; criminal policy problems in Slovenia and proposed solutions.

The incidence of assault and battery in one of the Slovenian regions; comparison of property offences in Yugoslavia, Austria and Poland; homicides in Slovenia; shoplifting in self-service stores; prediction of deviant phenomena up to the year 2000; recidivism in Slovenia; bankruptcies and other economic crime connected with the processes of transition; economic crime connected with the privatisation of socially-owned property; hate speech on online social networks in Slovenia; sexual offences and the (Slovenian) concept of force in defining rape; crime rates in the COVID-19 pandemic.

Selection of convicts to serve prison sentences in open prison regimes; classification of prisoners in Slovenia; organization of transitional homes for convicts after serving prison sentences; evaluation of probation in Slovenia; organization of support services for former convicts; comparison of the execution of prison sentences in France and Yugoslavia; execution of prison sentences in open regimes of prison institutions in Slovenia; execution of short-term prison sentences in Slovenia; work in prison; rights in prison and their protection in Slovenia; penological aspects of recidivism; services of social services for adult convicts; capacity of correctional institutions; living and working conditions of detained persons and persons serving prison sentences in Slovenia; social climate in prison institutions.

Mechanisms of formal social control; school as a mechanism of social control; informal social control and its operation; ideology and control; mechanisms and the operation of institutionalised non-state control; ideological control and political violence; regulating privacy, transparency, secrecy and other competing values in the 21st century; similarities and differences between de iure incriminated (legally forbidden) or de facto criminalized behaviour patterns and other, apparently normal, “natural” or “socially acceptable” activities; human rights and regulation of trustworthy artificial intelligence; crime control in the digital age.

Living conditions of juvenile delinquents; crime prevention and elementary schoolchildren; placement of juveniles in a foster family or an institution; ways of dealing with juvenile delinquency in Poland and in Yugoslavia; juvenile delinquents from two different cultures; treatment of young adult offenders in Slovenia; problems of juvenile gangs; rehabilitation of juveniles in Ljubljana, Slovenia; juvenile delinquents’ evaluation of criminal proceedings and implementation of juvenile measures; an experiment of  rehabilitation of maladjusted and delinquent youth ; disposal of juvenile delinquency cases and implementation of juvenile measures in Ljubljana;  absconding from juvenile institutions; the role of social work in juvenile justice; action research with juvenile delinquent gangs; prevention of juvenile delinquency in local communities; a system of society’s reaction to youth deviance; a new concept of residential treatment of disturbed children and juveniles; disciplinary punishment and prevention of violence in schools.

Attitudes of students and teachers towards children’s rights in school and at home; psychological rights of children; legal aspects of children’s rights; protection of children’s rights in schools.

Social, psychological and health characteristics of delinquent and non-delinquent alcoholics; sociopathological phenomena in the society and their prevention; the incidence of suicides in Slovenia; social disorganisation and its influence on sociopathological phenomena; perception of deviance in Ljubljana; concentration of deviant phenomena in Ljubljana; historical view of crime and deviance 100 years ago.

Restitution to victims of crime; exploration of hidden crime in Slovenia; a role of the involved bystanders in the criminogenesis; legal, medical and social welfare aspects of child maltreatment; the Dachau trials and the victims of these staged trials; UN victimisation survey – situation in Slovenia; institutional treatment of maltreated, abused and neglected children; victims of domestic violence, especially violence against women and children.

Fact-finding process in criminal investigation and truth-finding process in criminalistics; criminalistic and criminal law aspects of shoplifting in self-service stores; criminalistic and legal aspects of interviews with suspects.