Unfortunately, Securitas in the NE stinks. Don’t know about the rest of the country.
IIRC, Pinkerton’s agency constantly vastly overestimated the size of the Confederate forces, causing McClellan to think he was facing an army of 200,000 southerners.
He was also slow in capturing Booth after the assassination — a capture which was so muddled that doubts remained for years afterward that Booth had really been killed.