DCxDP idea #3:
The police in Gotham ignore Crime Alley on principle, but the fire department and ambulance services, extremely unofficially, give them a higher priority than the wealthiest districts.
They know that the Alley hasn't been up to code since the murder of the Waynes. The rich can afford to fix their fire escapes. The Alley can't.
More people would die in the Alley during a disaster if they didn't do that; the Alley residents know that. There's a lot of people from the Alley in those jobs. The pay is crap and the hours are worse, so why not? And the Alley sticks to everyone who has lived there, so sooner or later the Alley has more than it's fair shared of decent first responders (ACAB).
It stays with them after they die, that feeling, that memory, of knowing that the man next door might be a mugger, but he's the first one of the volunteer firefighters to run into a raging fire and start pulling out people—that he went back into one just to save a girl's ESA dog.
So, when the Portal gets opened, no one in Amity even knows when the 42 ghosts from Crime Alley bolt straight home. They don't learn about them until much later.
Was the Alley surprised when the woman who died on the table at Gotham General showed up at 4 first-aid training clasd? The one who'd been delivered in time, but who'd been bumped down the list by an aide from the Diamond District until she'd been waiting for too long to survive?
Not really.
Gotham was weird—why not add ghosts to be mix? If she wanted to save lives, good for her. Just don't let her use the paddles—they short out before she can get them out of the case.
Soon enough, Crime Alley has ghosts in the firehouse. They can go through walls and fly; the mortality rate for apartment fires drops dead.
The news spreads, slowly, to the rest of the city. Crime Alley has ghosts, and the ghosts are saving lives just like the other first responders do. The Bats start working with them, and after that, well, the city knows that the ghosts are on their side.
(A few cops try to arrest them for the usual made-up charges, but handcuffs can do nothing to stop a ghost.)
(Gordon got a gift basket from three girls he'd caught the murderer of.)
It takes a while for the news to spread out of Gotham. When it does, the JLD swings by on the down low to investigate. They're more surprised than the Alley was, but hey, these are thinking, feeling people; if they want to take the graveyard shift on call, more power to them.
All this means that, by the time the Amity Park situation gets out, the Drs. Fenton and the GIW have one hell of a time gaslighting anyone into believing their anti-ghost bullshit.
Crime Alley has a shared ACAB mindset and enough testimony and evidence to kill that shit, and they aren't the only ones that those 42 ghosts have made an impact on.
Those 42 ghosts are the reason why Amity Park doesn't become the only example of what ghosts can do. Without them, things would have been much, much worse.
