{"id":{"repo_id":"unsw","oai_identifier":"oai:unsworks.library.unsw.edu.au:1959.4/23442"},"canonical_url":"https://search.dev.ndltd.org/etd/unsw/oai:unsworks.library.unsw.edu.au:1959.4/23442","repository":{"repo_id":"unsw","name":"University of New South Wales","base_url":"https://unsworks.unsw.edu.au/oai/provider"},"display":{"title":"Deterrence, punishment severity and drink-driving","abstract":"This thesis tests one of the major propositions of deterrence theory: that increases in the severity of punishment can reduce the likelihood of offending. To this end, a case study in which the statutory penalties were doubled for almost all drink-driving offences in New South Wales, Australia, is examined. Two quasi-experimental studies were undertaken to assess the impact of these legislative changes: an interrupted time-series analysis of road crash rates (Study 1) and an analysis of drink-driving reoffending rates before and after the penalty changes were implemented (Study 2). Study 1 showed a significant increase in a surrogate measure of alcohol-related road crashes after the tougher drink-driving penalties were introduced. Further analyses suggested that this increase was driven primarily by a secular rise in non alcohol-related crashes that coincided with the policy’s implementation. Two possible conclusions about the deterrent effect of the policy are drawn from these findings: (1) that there was a reduction in alcohol-related road crashes which was overwhelmed by the rise in non alcohol-related crashes occurring around the same time or (2) that there was no change in crash rates. Study 2 found that drink-drivers who were convicted under the new penalty regime were less likely, and took longer, to reoffend than drink-drivers convicted before the introduction of the new penalties. This reduction in reoffending was only apparent for drink-drivers residing in country and regional areas and was small in magnitude.These latter findings are consistent with the possibility that the penalty changes coincided with a reduction in alcohol-related crashes but suggest that any decrease is likely to have been relatively small. A third study using a scenario-based survey methodology was also undertaken to examine the relationship between legal sanctions and willingness to drink-drive, controlling for other factors. The results of this study showed that participants who were more knowledgeable about drink-driving penalties were less likely to state that they would offend in the drink-driving scenario than participants who were less knowledgeable about the law. The implications of these findings for deterrence theory and criminal justice policy are discussed.","abstract_html":"This thesis tests one of the major propositions of deterrence theory: that increases in the severity of punishment can reduce the likelihood of offending. To this end, a case study in which the statutory penalties were doubled for almost all drink-driving offences in New South Wales, Australia, is examined. Two quasi-experimental studies were undertaken to assess the impact of these legislative changes: an interrupted time-series analysis of road crash rates (Study 1) and an analysis of drink-driving reoffending rates before and after the penalty changes were implemented (Study 2). Study 1 showed a significant increase in a surrogate measure of alcohol-related road crashes after the tougher drink-driving penalties were introduced. Further analyses suggested that this increase was driven primarily by a secular rise in non alcohol-related crashes that coincided with the policy’s implementation. Two possible conclusions about the deterrent effect of the policy are drawn from these findings: (1) that there was a reduction in alcohol-related road crashes which was overwhelmed by the rise in non alcohol-related crashes occurring around the same time or (2) that there was no change in crash rates. Study 2 found that drink-drivers who were convicted under the new penalty regime were less likely, and took longer, to reoffend than drink-drivers convicted before the introduction of the new penalties. This reduction in reoffending was only apparent for drink-drivers residing in country and regional areas and was small in magnitude.These latter findings are consistent with the possibility that the penalty changes coincided with a reduction in alcohol-related crashes but suggest that any decrease is likely to have been relatively small. A third study using a scenario-based survey methodology was also undertaken to examine the relationship between legal sanctions and willingness to drink-drive, controlling for other factors. The results of this study showed that participants who were more knowledgeable about drink-driving penalties were less likely to state that they would offend in the drink-driving scenario than participants who were less knowledgeable about the law. The implications of these findings for deterrence theory and criminal justice policy are discussed.","abstract_has_math":false,"creators":["Briscoe, Suzanne Marie"],"institution":"UNSW, Sydney","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2005,"date_issued":"2005","date_published":"2005","updated_at":"2026-07-24T05:32:53Z","subjects":["drinking and traffic accidents","drink driving","deterrence","sentencing","criminal justice interventions"],"languages":["EN"],"rights":["open access","CC BY-NC-ND 3.0","free_to_read"],"rights_urls":["https://purl.org/coar/access_right/c_abf2","https://creativecommons.org/licenses/by-nc-nd/3.0/au/"],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["https://doi.org/10.26190/unsworks/23230"],"render_values":[{"text":"https://doi.org/10.26190/unsworks/23230","href":"https://doi.org/10.26190/unsworks/23230","code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/1959.4/23442","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Briscoe, Suzanne Marie"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2005"]},{"key":"dc:publisher","label":"Institution","values":["UNSW, Sydney"]},{"key":"dc:type","label":"Dc Type","values":["doctoral thesis","http://purl.org/coar/resource_type/c_db06"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["drinking and traffic accidents","drink driving","deterrence","sentencing","criminal justice interventions"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["EN"]},{"key":"dc:rights","label":"Dc Rights","values":["open access","https://purl.org/coar/access_right/c_abf2","CC BY-NC-ND 3.0","https://creativecommons.org/licenses/by-nc-nd/3.0/au/","free_to_read"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/1959.4/23442","https://unsworks.unsw.edu.au/bitstreams/31edd1b9-0a51-483a-a447-c1629661c027/download","https://doi.org/10.26190/unsworks/23230"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["This thesis tests one of the major propositions of deterrence theory: that increases in the severity of punishment can reduce the likelihood of offending. To this end, a case study in which the statutory penalties were doubled for almost all drink-driving offences in New South Wales, Australia, is examined. Two quasi-experimental studies were undertaken to assess the impact of these legislative changes: an interrupted time-series analysis of road crash rates (Study 1) and an analysis of drink-driving reoffending rates before and after the penalty changes were implemented (Study 2). Study 1 showed a significant increase in a surrogate measure of alcohol-related road crashes after the tougher drink-driving penalties were introduced. Further analyses suggested that this increase was driven primarily by a secular rise in non alcohol-related crashes that coincided with the policy’s implementation. Two possible conclusions about the deterrent effect of the policy are drawn from these findings: (1) that there was a reduction in alcohol-related road crashes which was overwhelmed by the rise in non alcohol-related crashes occurring around the same time or (2) that there was no change in crash rates. Study 2 found that drink-drivers who were convicted under the new penalty regime were less likely, and took longer, to reoffend than drink-drivers convicted before the introduction of the new penalties. This reduction in reoffending was only apparent for drink-drivers residing in country and regional areas and was small in magnitude.These latter findings are consistent with the possibility that the penalty changes coincided with a reduction in alcohol-related crashes but suggest that any decrease is likely to have been relatively small. A third study using a scenario-based survey methodology was also undertaken to examine the relationship between legal sanctions and willingness to drink-drive, controlling for other factors. The results of this study showed that participants who were more knowledgeable about drink-driving penalties were less likely to state that they would offend in the drink-driving scenario than participants who were less knowledgeable about the law. The implications of these findings for deterrence theory and criminal justice policy are discussed."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Deterrence, punishment severity and drink-driving"]}]}],"canonical_facts":{"dc:creator":["Briscoe, Suzanne Marie"],"dc:date":["2005"],"dc:description":["This thesis tests one of the major propositions of deterrence theory: that increases in the severity of punishment can reduce the likelihood of offending. 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Two possible conclusions about the deterrent effect of the policy are drawn from these findings: (1) that there was a reduction in alcohol-related road crashes which was overwhelmed by the rise in non alcohol-related crashes occurring around the same time or (2) that there was no change in crash rates. Study 2 found that drink-drivers who were convicted under the new penalty regime were less likely, and took longer, to reoffend than drink-drivers convicted before the introduction of the new penalties. This reduction in reoffending was only apparent for drink-drivers residing in country and regional areas and was small in magnitude.These latter findings are consistent with the possibility that the penalty changes coincided with a reduction in alcohol-related crashes but suggest that any decrease is likely to have been relatively small. A third study using a scenario-based survey methodology was also undertaken to examine the relationship between legal sanctions and willingness to drink-drive, controlling for other factors. The results of this study showed that participants who were more knowledgeable about drink-driving penalties were less likely to state that they would offend in the drink-driving scenario than participants who were less knowledgeable about the law. 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