As far as I know, to legally run a home daycare of any kind any adult over the age of 18 that lives in the home needs to have a criminal record check and vulnerable sector screening.
The CCPRN says so here:
http://www.ccprn.com/en/information-...or-caregivers/

When I opened a year ago I found that on the Ministry of Children and Families website too. I can't find the page at the moment, but I understood that it doesn't matter if you are private or through an agency, every adult must have a valid criminal record check.

My husband and I both have them, and I've always pulled them out at interviews to show prospective clients. Most seem appreciative to have a quick glance, but I've had people on both ends of the spectrum too - people that seem taken aback that I would offer to show it to them, and people that read every single line and ask a gazillion questions about it.

The person that read it top to bottom was incredibly anal, and didn't end up going with me. I think anyone who doesn't understand your explanation is probably going to be a control freak and cause you more grief in the long run.