I think, as Mr. Hill explained, the grounds for detention are not going to change with Bill C-31. Individuals will be subject to detention if there are issues related to establishing their identity, if they pose a risk to Canada or Canadians through criminality or security, or if they pose a flight risk. I think it's important to underline that individuals, who may be part of a designated mass arrival, if they are able to help cooperate with CBSA and the RCMP to establish their identity and they don't pose a risk to the public, would be released from detention.
On April 30th, 2012. See this statement in context.