Product Home Page Chubb Locks Custodial Services (CLCS) is the UK and global leader in custodial locking solutions. Working in partnership with government and secure establishments, CLCS has developed world class products designed to respond to the challenges of modern custodial environments. Recognising the individual requirements of different types of custodial institution has led CLCS to a unique approach to sector-driven product development. While the outward appearance of CLCS products has remained consistent, the design, features and construction have evolved to keep pace with the changing demands of 21st Century custodial needs. In this section you will be able to examine our extensive product range, developed in close consultation with industry professionals and individually tailored to respond to the challenges faced by custodial establishments, the world over, every day.