Crime and justice

This document builds on POST's previous publication, Topics of Interest 2018 (POSTbrief 27). The subjects are listed under under six category headings based on the drivers of change identified in POSTnote 500: demographic change and healthcare; social and cultural trends; geopolitical and governance challenges; environmental pressures and climate change; resource security and sustainability; and technological advance.

Witness testimony is a written or oral statement given by an individual who has experienced an incident. It is collected during criminal investigations (including through investigative interviews, facial composites and identity parades). However, inaccurate witness testimony (such as the incorrect identification of a suspect) can lead to innocent people being wrongfully convicted. Wrongfully accused or convicted individuals are at risk of discrimination, relationship damage and poor mental health. Wrongful convictions are also costly, with a miscarriage of justice costing up to £1 million in compensation, and cause reputational damage to the police and legal system. Furthermore, the real perpetrators are not caught and may continue to harm society by committing further crime.

Violent crime includes a range of offences, from assault to murder. It can be any action that intentionally inflicts (or threatens) physical or psychological damage. Over the past decade overall crime has decreased, and violent crime is down by 69% since 1995. However, homicides and crimes involving knives or sharp instruments have risen since 2014. This has been reflected in an increase in hospital admissions for assaults with knives or sharp instruments. Violent offences are disproportionately concentrated in metropolitan areas, such as London and cities in West Yorkshire, Greater Manchester and the West Midlands. This POSTnote outlines types and prevalence of violent crime. It describes risk factors associated with involvement as a victim or perpetrator of violent crime. It then presents evidence on the effectiveness of early interventions to counter these risk factors and prevent violent crime.

Weaknesses in the cyber security of internet-connected consumer devices can undermine the privacy and safety of individual users and can be used for large-scale cyber-attacks. This briefing looks at the cyber threats associated with consumer devices and their causes, as well as initiatives to improve device security, and the related challenges.

Stalking and harassment both involve any repeated behaviour that would cause alarm, distress or fear of violence in a victim. Common stalking or harassment behaviours include unwanted contact online or in person, following a victim, and interfering with property. Stalking is characterised by a perpetrator’s fixation or obsession and can have long-term psychological and social effects on a victim. Stalking also has the potential to escalate to other crimes, such as sexual assault or murder. This POSTnote describes stalking and harassment before presenting evidence on the effectiveness of approaches to identifying, preventing and prosecuting these crimes.

Distributed ledger technology (DLT) is a type of digital records system that allows multiple identical copies of a ledger to be stored on different computers on a network and updated by multiple different users. This POSTbrief provides a technical overview of the different types of DLT and how they work. It discusses some of the main applications of DLT and highlights the benefits and challenges of the technology.

Biometric technologies identify individuals based on their distinguishing physical and behavioural attributes, such as fingerprints, face, and voice. Unlike passwords or traditional identity documents, biometric attributes are inherently linked to a person and cannot usually be lost or forgotten, potentially providing greater security and convenience. This briefing focuses on how these technologies work, their applications, and the policy challenges raised by their use.

A POSTnote that discusses the age of criminal responsibility and explores issues arising from international legal standards, the scientific research on children's mental and moral development, and alternative approaches to dealing with children in conflict with the law.

This list sets out the topic areas identified of possible parliamentary interest under the 9 different category headings (Agriculture, Fisheries, Food and Forestry, Crime, Defence, Education and Skills, Energy, Environment, Health, ICT and Robotics and Transport and Infrastructure).

Migration is often cited in public debate as a significant factor in the demand for UK housing. This POSTnote provides an overview of available research on migrants and housing. It examines definitions and data sources on migration and its implications. It also outlines the possible impact of migrants on housing, including variation by tenure type, migrant characteristics and region. Finally, it considers the impact of housing on migrants and local communities.

Internet search engines and social media platforms are an increasingly popular way of accessing news and information. In 2017, the proportion of UK adults consuming news online exceeded those who watched news on TV (74% versus 69%). This note considers how people access news online, how algorithms (sequences of instructions) and social networks influence the content that users see, and options for mitigating any negative impact.

The Government has identified ‘cyber’ as one of six Tier 1 threats to UK national security. This POSTnote focuses on the cyber security of the UK’s critical national infrastructure, describing measures to improve cyber security and challenges in implementing them. It also reviews the new National Cyber Security Strategy, along with international policy and legislation.

Environmental crime is generally used to describe any illegal activity that harms the environment. It can also have serious human health and social impacts. This POSTnote outlines the different types of environmental crime and options for tackling them.

A briefing that discusses children’s engagement with education and training on release from custody - complementing POSTnote 524 on Education in Youth Custody.

A briefing that expands on aspects of healthcare for families that experience baby loss - discussed in POSTnote 527, Infant Mortality and Stillbirth in the UK