More advice please-window security

And the saga continues. When Licensing Worker came for her first visit, she told me that I would need to get some sort of lock for my windows to keep a kid from accidentally falling out. An important thing since I live on the 4th floor.

So I went online and bought these nifty screw-type locks:

And it turned out that they don't fit on my windows. Okay, they were less than a dollar per lock, so not a huge deal.

I went back online and bought these window stoppers that are suction cups:

Just under six dollars each, so at this point I've spent a total of about $100 for my 14 windows. A small price to pay for making sure that a kid doesn't fall out of a window. And yes, I thought about how easy it is to take a suction cup off of a window. But almost every other lock I saw required screwing things into the window frame, which would be a neat trick to try with my metal window frames.

This is what I was thinking: these are to protect kids from accidental falls. Taking the lock off the window will require an intentional act (which for a small kid would also require climbing on something). If a kid is determined to fall out of the window, he or she will figure out how to open the window far enough to do so. Maybe I shouldn't have said that to Licensing Worker, but on minute 10 of the conversation yesterday in trying to convince her that my window stoppers are sufficient, I was losing my duck-like ability to let it all roll off my back. (Actually, I never had much of a duck-like ability to let it all roll off my back. Working on it.)

She is going to talk to her supervisor. In the meantime, I've come across another possibility: the "Burglabar." Just like the suction cups, though, or any other of these options, it can be de-activated so that the window can be opened all the way.

Here is what my jurisdictions rules require for foster homes:

[###] A foster home shall have and use protective devices on all
windows to prevent a child from falling out of the window.

...

[###] A foster home shall have and use safety locks on all windows and
doors on or above the second floor.

Given this, do you think I should go ahead and order the Burglabar, wait until I hear back from the Licensing Worker, write a treatise on why none of these are guaranteed methods of keeping a kid safe, or shoot an email to my friend the chief of staff of the agency?