BBC Democracy Live - Scottish Parliament 30 April 2013 Last updated at 12:39 Help Ch Supt David O'Connor of the Association of Scottish Police Superintendents told the Justice Committee that there is a need for an "impact assessment to identify our ability to deliver" on the Victims and Witnesses (Scotland) Bill on 30 April 2013. Ch Supt O'Connor told MSPs "we need to look at the impact of the bill in terms of the commitment across the service, to manage expectations," and added, "there are really solid foundations to build on with this bill." David Ross of the Scottish Police Federation also highlighted IT systems as limiting the ability to share information "we want to embrace the aims and objectives behind the bill but in terms of being prepared for it" there is more to be done. Ch Supt Craig Suttie of the Association of Scottish Police Superintendents highlighted: "issues about how we give witnesses the confidence to come forward," noting that often witnesses are not willing to give statements to the police, or if they do, they are not willing to give evidence in court but added "Victim Support and other agencies can help us with this." The bill is intended to put the interests of victims, and those who appear to be victims, at the heart of the justice system. It could allow vulnerable witnesses to give evidence behind a screen or by CCTV. The legislation also proposes the creation of a National Confidential Forum (NCF) for adults who were placed in institutional care as children to report abuse. MSPs took evidence from Alison Todd and Kate Higgins from Children 1st and Tam Baillie, Scotland's Commissioner for Children and Young People, in an earlier evidence session.