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Simon Lenton

Publications and source records attributed to Simon Lenton.

13 recordsLinked to original sources
PubMed2006

Threat or opportunity? Secondary exchange in a setting with widespread availability of needles.

Where authorized access to needles and syringes from exchanges and pharmacies is limited, secondary exchange (SE) can provide an important source of sterile injecting equipment. Interventions can be developed to use SE to facilitate needle and syringe exchange programs to reach a wider population of drug injectors. Yet in a context such as Western Australia, where needles and syringes are available to drug injectors from many authorized sources, the added benefit of SE is unknown. This review of data and literature conducted in October 2003 shows potential benefits but also concerns about undermining vulnerable public and political support for authorized needle provision schemes that has been nurtured and supported over a number of years.

HIV Infections↗
PubMed2005

A framework for prevention.

Prevention activity often occurs at different levels of community and social network. At the smallest level it could occur among a group of drug users and their peers, at the largest level, it could take the form of international drug treaties and conventions. Clearly, there are a number of ways of facilitating changes at these different levels of community and social network. This paper describes a framework that has been used by the National Drug Research Institute. It is useful in explaining that various prevention activities can operate at different community levels and in different contexts, and describes their mechanisms of action. The framework borrows from, and adapts, the 'alcohol prevention conceptual model' of Holder and the 'conditional matrix' of Strauss and Corbin. The framework is limited in that it is not a fully conceptualized, data-based or theory-driven model that specifies how its elements relate to one another. Despite these limitations it has proved to be useful in planning, understanding and describing prevention activity.

Australia↗
PubMed2005

Cannabis law reform in Western Australia: an opportunity to test theories of marginal deterrence and legitimacy.

'Marginal deterrence' refers to deterrence of a more harmful act because its expected sanction exceeds that for a less harmful act. 'Legitimacy of the law' predicts that laws perceived as fair will generate compliance and laws perceived as unfair will generate defiance. The introduction of the Cannabis Infringement Notice (CIN) scheme in Western Australia provided an opportunity to test these theories by assessing whether perceptions of certainty, severity and fairness of punishments dictated by the CIN scheme would affect how regular cannabis users intended to obtain cannabis after legislative change. One hundred Perth residents (mean age 32.2 years; two-thirds male) who reported using cannabis at least once a week were given semi-structured interviews before the CIN scheme came into effect. There was limited opportunity for the CIN scheme to effect marginal deterrence, as most of the sample were already purchasing or growing within the lower penalty thresholds. However, of the minority who were purchasing and growing outside the CIN scheme, a significant proportion reported intending to change their behaviour to fit within the scheme, including the only purchaser of more than 30 g and six of 14 non-hydroponic growers of three or more plants. Perceived certainty, severity and fairness of penalties were not as important in determining purchasing and growing behaviour as factors such as 'meeting needs', 'cost' and 'preference'. The results suggest that under the CIN scheme, marginal deterrence and legitimacy will probably play only a small or selective role in decisions about obtaining cannabis, although in some areas, such as the numbers of non-hydroponic plants, marginal deterrence may be evident.

Adolescent↗
PubMed2005

Expected impacts of the Cannabis Infringement Notice scheme in Western Australia on regular users and their involvement in the cannabis market.

The effect on the cannabis market is one area of interest in the evaluation of the new 'prohibition with civil penalties' scheme for minor cannabis offences in WA. One goal of the scheme is to reduce the proportion of cannabis consumed that is supplied by large-scale suppliers that may also supply other drugs. As part of the pre-change phase of the evaluation, 100 regular (at least weekly) cannabis users were given a qualitative and quantitative interview covering knowledge and attitudes towards cannabis law, personal cannabis use, market factors, experience with the justice system and impact of legislative change. Some 85% of those who commented identified the changes as having little impact on their cannabis use. Some 89% of the 70 who intended to cultivate cannabis once the CIN scheme was introduced suggested they would grow cannabis within the two non-hydroponic plant-limit eligible for an infringement notice under the new law. Only 15% believed an increase in self-supply would undermine the large scale suppliers of cannabis in the market and allow some cannabis users to distance themselves from its unsavoury aspects. Only 11% said they would enter, or re-enter, the cannabis market as sellers as a result of the scheme introduction. Most respondents who commented believed that the impact of the legislative changes on the cannabis market would be negligible. The extent to which this happens will be addressed in the post-change phase of this research. Part of the challenge in assessing the impact of the CIN scheme on the cannabis market is that it is distinctly heterogeneous.

Adolescent↗
PubMed2005

Community attitudes towards cannabis law and the proposed Cannabis Infringement Notice scheme in Western Australia.

Western Australia (WA) became the fourth Australian jurisdiction to adopt a prohibition with civil penalties scheme for minor cannabis offences when its Cannabis Infringement Notice (CIN) scheme became law on 22 March 2004. Previous criminological research has demonstrated the importance of public attitudes towards the law in determining the effectiveness of legislation. This survey represents the first phase of a pre-post study that attempted to gauge public attitudes towards the legal status of cannabis, the proposed legislative reforms surrounding the drug and their likely effects. A random telephone survey of 809 members of the WA population was conducted prior to the implementation of the new laws with a view to exploring contemporary views of the existing legal status of cannabis, attitudes to the proposed legislative model and respondent perceptions of its likely effects. Despite cannabis being viewed negatively by large numbers of the sample, criminal penalties for minor cannabis offences were viewed as inappropriate and ineffective. Once explained, the proposed civil penalty scheme was viewed as 'a good idea' by 79% of the sample, despite significant differences due to personal experience of cannabis use, political affiliation, religiosity and age of offspring. Most believed that the legislative change would not result in changes to levels of cannabis use (70%) or ease of obtaining cannabis (59%). These data suggest that prior to its implementation the new legislation was highly acceptable to the majority of the community. These baseline data will be compared with data to be collected at the post-change phase of the study to allow empirical observations of attitudinal and behavioural changes occurring in the community.

Adolescent↗
PubMed2005

Expected impacts of the Cannabis Infringement Notice scheme in Western Australia on attitudes and drug use of school children.

Western Australia (WA) became the fourth Australian jurisdiction to adopt a prohibition with civil penalties scheme for minor cannabis offences when its Cannabis Infringement Notice (CIN) scheme came into effect on 22 March 2004. This study, part of the pre--post evaluation of the legislative reforms, aimed to measure the impact of the changes on attitudes and drug use of school children. A self-completion survey was conducted of 2,638 students in years 9 and 12 from a selection of 11 government secondary schools in Perth. The students knew more about the risks and harms associated with cannabis than they did about prevalence of use and cannabis law. Half the year 12s and 28% of the year 9s had used the drug. Only 32% of students understood the term 'prohibition with civil penalties'. Once explained, 70% of those who had never used the drug said they would not try it if such a scheme were introduced, 5% said they would try it and 24% did not know. Significantly more (11%) said that they would try the drug if it were legalized. Although the CIN scheme applies only to adults there was a concern that such a change would indirectly affect cannabis use by children. This pre-change study suggests this is unlikely, but this will be monitored in the post-change phase of the research.

Adolescent↗
PubMed2004

Pot, politics and the press--reflections on cannabis law reform in Western Australia.

Windows of opportunity for changing drug laws open infrequently and they often close without legislative change being affected. In this paper the author, who has been intimately involved in the process, describes how evidence-based recommendations to 'decriminalize' cannabis have recently been progressed through public debate and the political process to become law in Western Australia (WA). The Cannabis Control Bill 2003 passed the WA Parliament on 23 September. The Bill, the legislative backing behind the Cannabis Infringement Notice (CIN) Scheme, came into effect on 22 March 2004. This made WA the fourth Australian jurisdiction, after South Australia, the Australian Capital Territory and the Northern Territory, to adopt a prohibition with civil penalties scheme for minor cannabis offences. This paper describes some of the background to the scheme, the process by which it has become law, the main provisions of the scheme and its evaluation. It includes reflections on the role of politics and the press in the process. The process of implementation and evaluation are outlined by the author, foreshadowing an ongoing opportunity to understand the impact of the change in legislation.

Australia↗
PubMed2002

The development and evaluation of the pain indicator for communicatively impaired children (PICIC).

A previous study found that parents of communicatively impaired children with severe cognitive impairments identified six core cues as indicating definite or severe pain in their child (J. Pediatr. Psychol. 27 (2002) 209). The frequency of each cue was assessed by 67 caregivers of communicatively impaired children, twice per day over a 1 week period. On each occasion the caregivers also rated whether they considered their child to be in pain and the severity of any pain. There was a statistically significant relationship between five of the cues and the presence and severity of pain. The single cue of screwed up or distressed looking face was the strongest predictor and on its own correctly classified 87% of pain and non-pain episodes. The study highlights the potential clinical utility of a short carer completed assessment to assess pain in this vulnerable group of children.

Adolescent↗
PubMed2002

Potential impacts on the incidence of fatal heroin-related overdose in Western Australia: a time-series analysis.

In response to the rising concerns about the rate of heroin-related fatalities, overdose prevention campaigns, run by both users' organizations and government agencies, have been implemented in a number of states across Australia. In Western Australia (WA) in mid-1997, various overdose prevention initiatives were implemented. These included the implementation of a protocol limiting police presence at overdose events; the commencement of naloxone administration by ambulance staff; and the establishment of the Opiate Overdose Prevention Strategy (OOPS) which provided follow-up for individuals treated for overdose in emergency departments. This paper reports the results of a multiple linear regression analysis of 60 months of time-series data, both prior to and following the implementation of these interventions, to determine their impact on the number of fatal heroin overdoses inWA. The model employed in the analysis controlled for changes over time in proxy indicators of use and community concerns about heroin, as well as market indicators. The results suggest that, although the interventions implemented have managed to reduce the expected number of fatalities, they have become less successful in doing so as time passes. This has implications for both existing and potential interventions to reduce fatal heroin-related overdose.

Adolescent↗
PubMed2002

Brief report: behaviors identified by caregivers to detect pain in noncommunicating children.

OBJECTIVE: To develop an observational measure, based on caregiver reports, to assess chronic pain in children with significant cognitive impairment who are unable to communicate verbally. The issue of whether these children share a core set of cues to express pain was investigated. METHODS: Specific pain cues were elicited during detailed interviews with 29 female caregivers of noncommunicating children. Pain cues were categorized by a two-stage Delphi process and cues indicating severe and definite pain identified. RESULTS: Six cues from five different categories were used by 90% of caregivers to identify definite or severe pain in their child. CONCLUSIONS: Although the specific expression of pain may be very individual, there is a shared set of core pain cues. The relationship between these cues and evidence of pain and distress is discussed.

Adolescent↗