Bart is riding along with the two uniformed police officers. They get involved in chasing a felon and one of the officers says something like “this is against every rule in the book, but -cover me kid” and hands Bart a gun.
The episode is called “Separate Vocations.” It’s the one where an aptitude test tells Bart he should be a cop, and Lisa is told her ideal job is homemaker.
For future reference, there is a truly terrifying amount of episode-specific information here:
http://www.snpp.com/episodeguide.html
The page for the “Separate Vocations” episode is here.
Only bad thing about SNPP is that they take a looooong time to get their complete episode guides up. At this point, I think they’re several years behind. I don’t even know if the site is still being actively updated.
I didn’t know that. I’ve only visited the site when looking for the answer to a Simpsons question raised on SDMB.
Is there a better site with episode guides?