Charlene is the Head of Policy Delivery for Supply Chains & Service Offering at Crown Commercial Service, the largest public buying organisation in the UK. Charlene moved into the commercial policy arena after over 12 years in category and commercial roles in the public sector. During this time she worked with colleagues across Cabinet Office and Department for Digital, Culture, Media and Sport to deliver the pilot procurement for delivery of social value within CCS, and helped develop PPN 06/20 on Social Value for Central Government.

Kristen joined Crown Commercial Service (CCS) in 2013 and has worked in various roles across the business over the past 10 years including project management, commercial strategy of £bn frameworks and business development. Kristen recently followed her passion for the environment and took on the position of Head of Sustainability, working to decarbonise the £30bn annual spend through CCS. Kristen works closely with public sector buyers, suppliers and industry bodies to help accelerate the journey towards achieving CNZ by 2050 at the latest. Kristen is MCIPs qualified.

Adrian has many years of experience working in local and central government, including periods in front-line services. He currently works on the implementation of responsible purchasing policies in the Crown Commercial Service. He supports and advises commercial teams on the application of policies such as social value, equality and modern slavery prevention in procurement activities. He also responds to requests for assistance from commercial officers from wider public sector bodies. He is interested in how public sector commissioning and contract management skills can bring the widest possible benefits to society. He often talks to colleagues and commercial practitioners across the public sector about how procurement can have the most impact on modern slavery prevention. He and his family live in London.