Crime scene is any given place where it committed a criminal offense, in which the investigation should be done to find the causes and mechanisms of occurrence and on these to be investigated, for tracking and apprehe...Crime scene is any given place where it committed a criminal offense, in which the investigation should be done to find the causes and mechanisms of occurrence and on these to be investigated, for tracking and apprehension of perpetrators. Preservation of the scene is a very important action regarding the investigation and prosecution of the event that has happened, where law enforcement agencies or units that conduct surveillance of the scene make it. To preserve a scene means： to preserve the land in that state who has left the presidency. Preservation of the scene of that condition that has left the perpetrator is of particular importance to the inspection teams for tracks and material evidence found there are untouched and proceeding or their expertise will help prosecute perpetrators respectively capture of that work. Tracks and material evidence found in the scene should be retained together with all the space where the event happened because a possible carelessness during the examination as well as during the process of storage and security will bring us to a situation in which we will have our doubts concerning the tracks and material evidence found in that place. Also, preservation of the crime scene needs to be done because of the all action who have to take the searching unit, they need to be sure and security from everything that comes from outside.展开更多
In an evolutionary perspective individuals are expected to vary the degree of parental love and care in relation to the fitness value that a child represents. Hence, stepparents are expected to show less solicitude th...In an evolutionary perspective individuals are expected to vary the degree of parental love and care in relation to the fitness value that a child represents. Hence, stepparents are expected to show less solicitude than genetically related parents, and this lack of genetic relatedness has been used to explain the higher frequencies of child abuse and homicide found in stepfamilies. However, other factors than non-genetic relatedness may cause this over-representation in stepfamilies. Here we use a 45-year data set of parental chiltl homicides in Sweden to test two hypotheses related to the higher incidence in stepfamilies： 1） adults in different types of family differ in their general disposition to use violence, and 2） parents are more likely to kill stepchildren than genetically related children. Of the 152 perpetrators in biparental families there was an overrepresentation of perpetrators in step- families （n=27） compared with the general population. We found support for the first hypothesis in that both general and violent crime rates were higher in stepfamilies, both in the general population and among perpetrators of child homicide. However, we found no support for the second hypothesis because of the 27 perpetrators in stepfamilies the perpetrator killed a genetically related child in 13 cases, a stepchild in 13 cases and both types of children in one case. Moreover, out of the 12 families where the perpetrator lived with both stepchildren and genetic children, there was no bias towards killing stepchildren. Thus, we found no evidence for an effect of non-genetic relatedness per se [Current Zoology 57 （3）： 253-259, 2011].展开更多
文摘Crime scene is any given place where it committed a criminal offense, in which the investigation should be done to find the causes and mechanisms of occurrence and on these to be investigated, for tracking and apprehension of perpetrators. Preservation of the scene is a very important action regarding the investigation and prosecution of the event that has happened, where law enforcement agencies or units that conduct surveillance of the scene make it. To preserve a scene means： to preserve the land in that state who has left the presidency. Preservation of the scene of that condition that has left the perpetrator is of particular importance to the inspection teams for tracks and material evidence found there are untouched and proceeding or their expertise will help prosecute perpetrators respectively capture of that work. Tracks and material evidence found in the scene should be retained together with all the space where the event happened because a possible carelessness during the examination as well as during the process of storage and security will bring us to a situation in which we will have our doubts concerning the tracks and material evidence found in that place. Also, preservation of the crime scene needs to be done because of the all action who have to take the searching unit, they need to be sure and security from everything that comes from outside.
文摘In an evolutionary perspective individuals are expected to vary the degree of parental love and care in relation to the fitness value that a child represents. Hence, stepparents are expected to show less solicitude than genetically related parents, and this lack of genetic relatedness has been used to explain the higher frequencies of child abuse and homicide found in stepfamilies. However, other factors than non-genetic relatedness may cause this over-representation in stepfamilies. Here we use a 45-year data set of parental chiltl homicides in Sweden to test two hypotheses related to the higher incidence in stepfamilies： 1） adults in different types of family differ in their general disposition to use violence, and 2） parents are more likely to kill stepchildren than genetically related children. Of the 152 perpetrators in biparental families there was an overrepresentation of perpetrators in step- families （n=27） compared with the general population. We found support for the first hypothesis in that both general and violent crime rates were higher in stepfamilies, both in the general population and among perpetrators of child homicide. However, we found no support for the second hypothesis because of the 27 perpetrators in stepfamilies the perpetrator killed a genetically related child in 13 cases, a stepchild in 13 cases and both types of children in one case. Moreover, out of the 12 families where the perpetrator lived with both stepchildren and genetic children, there was no bias towards killing stepchildren. Thus, we found no evidence for an effect of non-genetic relatedness per se [Current Zoology 57 （3）： 253-259, 2011].
