That photo you posted the link to is the same photo only the quality is less, it's turned 90 degrees and it's a mirror image.
As for the police vs secret service, they were both there. And the police were from several departments. They had the PA State Police, the Butler County Police and the Beaver County "response" team there which had no jurisdiction but were there anyway, not sure in what capacity.
It's normal to have various departments at these events. Communication seems to have failed and this is all on the Secret Service who are to take charge completely in these situations. I have never heard of such a fiasco to be honest.
Add to all this controversy, Secret Service personnel were diverted from the Trump event to an event where the 1st Lady appeared in nearby Pittsburg on the same day. This is idiocy because no one cares about the 1st Lady, no one is going to assassinate her, she needs minimal protection.
Anyone that wants the photo, PM me your email address and I'll send it. I don't have the original link anymore, didn't save it, didn't think to.