Sisonke Msimang had no way of knowing the item she picked up while in the crowd at a Perth Invasion Day rally was what police allege was a homemade bomb designed to detonate on impact. She also told 7.30 that police were slow to act when she approached them with the device. "It's supposed to be this childlike object, and it's on the ground and it doesn't look like anything, but at the same time, obviously it had a lot of really bad stuff inside of it," Ms Msimang told 7.30.