To reinforce what Q says, a private investigator can't legally do anything any other citizen can do other than offer investigative services to the others.
You have no way to be certain of that....it is not a coincidence that a PI's wallet and ID cards along with his PI license was found in the truck after all that has happened. This wasn't a random act.
Wouldn't a drone be more effective?Let's count the ways that wallet could have gotten into the back of that truck.
1. A PI was climbing in the truck looking for clues, dropped his wallet and failed to notice it among the clues in an empty pickup bed.
2. Whilst at Walmart, a PI was beaten to death by an irate husband. The body was loaded into the trunk and just before driving off, the murderer saw the wallet, picked up and tossed it into the back of truck next to him. The location and cause of death can change in infinite combinations.
3. While hang gliding, to get some racy photos of a subject sunbathing in the back yard in January with the pool boy, the PI's wallet fell out of his pocket. He posted a reward on craigslist. Opps.
4. While making a cash contribution to a homeless wanderer, the PI was struck by the awesomeness of the Lord and threw his hands in the air with mighty hallelujah. He doesn't care about the wallet. Take what you need.
5. Hubby saw the PI watching the people next door because they are suspects in a parental abduction case, but Hubby is paranoid and assumed the PI was there for him, so he killed him and disposed of the body but forgot the wallet and had to come up with a plausible story.
6. There is no wallet. There is no reality. You are all just nodes in the simulati...................................................................file not found
I checked YouTube, the font of all knowledge, and no sign of that video I'm afraid.Wouldn't a drone be more effective?
7. Hubby is having an affair with the PI, and got a little too frisky in the back of the truck.
Edit: It sounded more plausible than Shadow People.