Any attempt to build a safe injection site in Saskatoon could face a public relations battle, according to a new poll. Mainstreet surveyed 600 residents of Saskatoon between Jan. 3-4 . Of those surveyed, 41 per cent said they opposed a safe injection site, with 39 per cent in favour. Mainstreet said the poll is considered accurate 19 times out of 20, with a four per cent margin of error.