In the scene where Oliver and Felicity are arguing at home, Oliver accidentally knocks Williams science fair project onto the ground, shattering it. However, a couple of camera changes later, the glass tank can clearly be seen behind Oliver on the table, still in tact.
At 01:35, when Oliver attacks the officers to inquire about Diaz, and there is power surge, the computer monitor is flickering on and of. PCB based systems don't work that way. Either their is a UPS/ Inverter to give continuous power supply even in wake of power surges, then there is no flickering at all. Or, without any UPS/ inverter, the devices shuts down and reboots, taking its own time and showing the progress on the screen, it doesn't flicker like this.
Councilman Kullens threatens Oliver with impeachment for perjury. Perjury is lying under oath and at no point has Oliver been sworn.