L4 counting crime Flashcards
canadian crime stats
- important way to learn of the preponderance of crime.
- strengths and weaknesses of canadian crime statistics
- cautious about crime stats from other countries too
4 controversies over counting crime
coverage: how can we obtain reliable and valid data on the scope and nature of crime?
validity: does the tool actually measure crime?
reliability: how consistent are the results
methodology: do the methods used to count crime hold up under critical analysis
three dominant ways to count crime or describe crime patterns + trends.
- official (police-reported) stats
- victimization survey
- self-report studies
sources of official crime data
cjs produces enormous amount of raw data
- CCJS: collected info on crime that has been reported by police since 1960’s. division of Stats Can.
report crime using UCR
what is UCR?
uniform crime reports: measure of incidence of crime.
- only stuff that’s reported to police
- uniform , nation-wide used to collect and count data
what is the seriousness rule re: UCR?
if there are several crimes, reported in one incident, only the most serious crime is counted.
- deflated total crime rate
- increases violent crime as a proportion of the total
- problems with scoring seriousness (not all crimes in same category created equal)
police-reported crime rates
- total
- property
- other crimes
- violent crimes
*internet
peak in total crimes around 1992.
lowest = violence crimes, property crimes are second to total crimes.
internet is used by pretty much everyone. gives rise to serious crimes that often go undocumented, undetected + victims don’t report.
gross counts of crime
a count of the total amount of crime in a given community making no distinction between crime categories
Ouimet report - increase in total convictions..
total convictions for all criminal offences in canada increased by 2500% betwen 1901-1965.
– most due to summer offences, like traffic that were increasing in popularity
CSI
crims severity index
- shows severity of crimes within country
- addresses high volumes of crime due to less serious offences.
- give each offence a weight derived from sentences given by criminal court
- more serious the sentence, the greater the weight
- the more serious offences have a greater impact on the severity index
police-reported crime severity indexes
violent crimes decline similarly to total crimes. overall crime severity decreases over time.
steps to get statistic after crime happens (2 ways)
- noticed by public; perceived as crime; someone notifies police; police designate as crime; police write report
- witnessed by police; event designated to be a crime; decision to write report
calculating the crime rate
number of crimes/ population X 100,000 = crime rate
the crime funnel
- more offenses than are reported
- more reported than convicted
- more convicted than charged.
1% of the crimes are sentenced to custody
5 disparities in knowledge of crime incidents
- report sensitive
- police sensitive
- definition sensitive
- media sensitive
- actual crime trends