Your friends, and I'm not joking. Polygraphs themselves are poor indicators, but that's just one of many tools adjudicators use when judging people for clearances. The primary tool is documentation (you'd be amazed how many people lie about criminal offenses when it's a quick search away), and second is friends (2nd order ones especially), acquaintances, and neighbors.
If something is so problematic as to be worth lying about in the first place, why tell your friends? People generally don’t go around bragging about how much porn they’ve pirated.
I suppose I’m just reinforcing the “don’t get caught” mantra, but that’s really not a trait I like to see in people who are supposed to be cracking down on fraud.
As SteveNuts said, you're too focused on the infraction. It's the lying part that's the problem because it shows lack of judgement. Which really just means it's something that can be used to blackmail you later.
No one cares if you like porn or had a DUI when you were younger, unless you're lying about it.
I think you're focusing too much on the supposed infraction (they don't actually care whatsoever if you've smoked weed or downloaded something illegally). They're selecting for character judgement traits.
Your friends, and I'm not joking. Polygraphs themselves are poor indicators, but that's just one of many tools adjudicators use when judging people for clearances. The primary tool is documentation (you'd be amazed how many people lie about criminal offenses when it's a quick search away), and second is friends (2nd order ones especially), acquaintances, and neighbors.