{"title":"Co-decision-making in the assisted decision-making (Capacity) Act 2015: challenges and complexities.","authors":"Shaun T O'Keeffe","doi":"10.1017/ipm.2025.10096","DOIUrl":null,"url":null,"abstract":"<p><p>Co-decision-making is the middle of the three new tiers of support for those whose capacity is in question or lacking under the Assisted Decision-Making (Capacity) Act 2015. In co-decision-making, decision-making authority is shared jointly between the person and their chosen co-decision-maker. Co-decision-making is a new and challenging concept and the capacity test to be applied by healthcare professional assessors is complex. I suggest that thinking about the minimum requirements for joint decision-making and about the idea of 'partial capacity' are helpful in determining where co-decision-making fits on a capacity spectrum. Whatever the difficulties, co-decision-making is a core support arrangement in the new law, and there is a responsibility on all seeking to support a relevant person to work to ensure it is a viable and useful option.</p>","PeriodicalId":46220,"journal":{"name":"IRISH JOURNAL OF PSYCHOLOGICAL MEDICINE","volume":" ","pages":"374-379"},"PeriodicalIF":2.5000,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IRISH JOURNAL OF PSYCHOLOGICAL MEDICINE","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1017/ipm.2025.10096","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/10/21 0:00:00","PubModel":"Epub","JCR":"Q3","JCRName":"PSYCHIATRY","Score":null,"Total":0}
引用次数: 0
Abstract
Co-decision-making is the middle of the three new tiers of support for those whose capacity is in question or lacking under the Assisted Decision-Making (Capacity) Act 2015. In co-decision-making, decision-making authority is shared jointly between the person and their chosen co-decision-maker. Co-decision-making is a new and challenging concept and the capacity test to be applied by healthcare professional assessors is complex. I suggest that thinking about the minimum requirements for joint decision-making and about the idea of 'partial capacity' are helpful in determining where co-decision-making fits on a capacity spectrum. Whatever the difficulties, co-decision-making is a core support arrangement in the new law, and there is a responsibility on all seeking to support a relevant person to work to ensure it is a viable and useful option.