Per the YouTube Description:

Security for the Metro Toronto Convention Centre detain Shaun and Dave as they shoot footage prior to the G20 Summit.

This video demonstrates that by standing firm, nobody can give themselves the right to view or delete your film. Trespassers must leave private property upon first notice, and they may only be arrested if they refuse to do so.

These security guards initially said we were being detained and were to accompany them to the security office. We politely declined, but kept filming to see if they would insist on deleting our footage. Eventually another security guard arrives, advises the office to film us on security camera, and claims we were never being detained in the first place.