She's tied to Paul Hughes. Enough said. I believe the sad looking boy in the picture is Hughes' son. I suspect it was purposely provacative - Hughes is antagonistic toward City staff in particular on urban food issues.
As for "derelict" vacant properties or unkept properties, this is why there's a Community Standards By-law.
http://www.calgary.ca/_layouts/cocis...edirect=1&sf=1
For instance, if a property has grass un-mowed over 15 cm, the City can force action on the property owner if a complaint is received.
As for Mar, it was inappropriate for him to be riding with the Police to the property. He could simply have told them the addres,s he didn't have to "give Police directions".