I got one thing I'd like them to know. We're afraid of them. At least, I am, especially of male police officers.
If I get pulled over and our ID doesn't match (in my case my presentation doesn't match, and even when I get a new license after my name change, it will still say M for gender...) we've got to worry we're going to get in trouble over that as well as anything they don't know or any preconceived notions they have.
I keep reading stories of trans people getting arrested for being accused of prostitution even when we're not doing it.
There's stories of police sexually abusing trans people (obviously not the majority, but enough to where it's a concern).
If we get arrested (for a crime or for suspicion of prostitution ... because we're transgender...) we have to worry we're going to get thrown in the wrong section of the jail.
It gets worse if you're a minority ethnicity in the U.S., I'm sure.
...They're hard to trust, and they definitely make me nervous even though I'm 34 and never even been stopped by them, just because of the nightmarish thought of what they might do.
All of the above also causes us to not report crimes committed against us because not only of the above, but we also don't feel they'll investigate them as fully as they will other crimes committed toward cisgender people. And that's a big problem, because it leaves us open to abuse (trans women worry we'll be told to 'be a man' or otherwise not taken seriously, or that we 'wanted it' in cases of rape for example ... this is why I didn't call the police a year ago when my wife came running at me with a pair of scissors threatening to stab me. I didn't realize that was even an option until someone pointed that out to me a week later and I don't think I still would have done it had I realized it sooner because I worried the police wouldn't take me seriously).
...
So yes. I'm afraid of cops.
I don't know. Maybe I'm over-reacting.
*EDIT* Just noticed how old this is. Sorry I missed it the first time around. How did your presentation go, Suzi?