There are a large variety of ways in which these offences are reported. It could be through somebody who has been victimized themselves or through somebody who knows there has been a victim, somebody who is aware that someone has been victimized, but they may be intimidated to come forward because they might be concerned about what may happen to them if they do report the crime.
In the course of doing our police investigations, we may come across information where we identify the offence itself. If we have a wiretap investigation under way for a drug trafficking case and we happen to intercept communications that involved an immigration consultant, we could then proactively initiate an investigation as well.
There's the crime stoppers program, anonymous complaints, and acting proactively through intelligence. For instance, we target Internet sites that are involved in a whole bunch of criminal activity where we actually proactively go and try to identify trends and patterns.
There are a number of ways through which complaints come to both the RCMP and CBSA.