This document provides guidance to professionals and volunteers from all agencies in safeguarding and promoting the welfare of trafficked and exploited children. Trafficked children are at increased risk of significant harm because they are largely invisible to the professionals and volunteers who would be in a position to assist them. The adults who traffic them take trouble to ensure that the children do not come to the attention of the authorities, or disappear from contact with statutory services soon after arrival in the UK, or in a new area within the UK. This guidance is supplementary to, and should be used in conjunction with, the latest edition of the London Safeguarding Children Board’s “London Child Protection Procedures”:http://www.londonscb.gov.uk/procedures/. This guidance is linked to the London Safeguarding Trafficked Children Toolkit 2011 (referred to here as the Trafficked Children Toolkit), which includes a number of additional tools to assist professionals in both assessing the needs of the child and the continuing risks that they may face, and referring their case to the competent authority (UKBA will fulfil this role for asylum cases, UKHTC for all other cases).