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death invest quiz 2
| Question | Answer |
|---|---|
| Serial Murder: | The unlawful killing of two or more victims by the same offender(s), in separate events |
| the time period between murders | separates serial murder from mass murder |
| Serial murder differs from other forms of homicide based on several distinguishing features, including | • A minimum time frame (commonly with a “cooling off” period between homicides of days, weeks, months or years) • Body Count (at least two or more) • General pattern of the killing (e.g. victim selection, method, and location of murders) |
| Serial murderers have generally been diagnosed with any of the following: | temporal lobe epilepsy, bipolar disorder, schizoid personality, personality disorders (antisocial, narcissistic, borderline), and/or dissociative disorder |
| Serial murder is generally conceptualized time | as the intentional killing of two victims over a period ofmass murder is commonly defined as the intentional killing of four or more victims, usually with firearms, within one incident |
| Serial murderers are also more likely to | seek to avoid capture, while mass murderers are more likely to commit suicide or instigate suicide by cop at the end of their attacks |
| method of murder | Techniques necessary to commit crime ▪ Learned behavior based on external circumstances ▪ May intentionally change as offender gains experience/ confidence or to fool law enforcemen |
| signature at murder | Actions beyond those necessary to commit crime • Compulsion based on fantasies unique to offender • Seldom changes and often evolves with each crime |
| DNA | Deoxyribonucleic Acid |
| sources of dna | Blood • Semen • Epithelial cells • Bone • Hair |
| physical sources of dna at crime scene | Blood evidence (staining) • Drink containers • Cigarette butts • Weapons • Clothing / Footwear • Food • Etc. |
| possible dna contamination | • Crime scene investigator • Other first responders • Contaminated equipment • Exhibit and/or scene cross-contamination |
| Precautions | • Packaging items from different scenes in different containers • Have, and maintain, a clean working area • Have a plan • PPE |
| centre of forensic science What they do: | •Identify body fluids and create DNA profiles •Upload profiles to the National DNA Data Bank (NDDB) |
| Two main service tracks: | •High-Volume Service (HVS): property crimes, bulk processing, faster TAT •Violent Crime Service (VCS): serious crimes, longer TAT |
| CFS screening section | • Physical evidence is searched for biological fluids and samples are collected • Visual examination • Light sources/microscopy • Presumptive testing • DNA analysis |
| CFS biology section | • Extraction • Quantification • Amplification (PCR) • Separation & Analysis (Capillary Electrophoresis, CE) RAPID DNA Analysis |
| ANDE Samples | • Blood • Swabs • Tissues • Teeth • Bone marrow |
| investigative genetic genealogy | •Combines DNA analysis with family tree research •Used to identify unknown suspects or victims •Helps solve cases when other methods fail |
| dna limits | Cant distinguish between identical twins, Mixtures can be hard to interpret, deposits cant be dated, DNA profile may not be from the last person to handle item, Someone can wear/handle an item and not deposit enough DNA to develop a profile |
Created by:
skyep25