From bow and arrows to mini Stonehenge-like structures: Hong Kong students gear up for battle with police Student protesters at Hong Kong Polytechnic University build barricades and mini Stonehenge-like structures using bricks on roads as they aim to hamper any potential battles with police on Thursday.\\n\\nSome bring bows and arrows, while others are busy preparing logistical and food supplies in the campus halls.\\n\\n IMAGES