Westminster security measures face further scrutiny after crash

The latest apparent attack in Westminster will inevitably lead to further scrutiny of the security measures currently in place to protect parliamentarians as well as Londoners and tourists in the capital.In the aftermath of the 9/11 and 7/7 attacks, lines of crash-rated bollards, concealed barriers in the forms of balustrades and steel barriers were placed around Westminster and outside the Houses of Parliament.Kirsty Moseley was one of the closest witnesses to Tuesday's suspected terror attack