Interestingly, the administrative subpoena is not really "new." It was widely used by Office of Inspector Generals (OIGs) for years on other government agencies and investigation targets. The difference here is that an agency is using it specifically on private parties for fishing, which is a bit new.
Yes, get one with a big container so you're not changing it out every 5 minutes. Also, it needs to be able to handle staples, the thick ones. It's very annoying to have to pull them out by the thousands without that.
Interestingly, the administrative subpoena is not really "new." It was widely used by Office of Inspector Generals (OIGs) for years on other government agencies and investigation targets. The difference here is that an agency is using it specifically on private parties for fishing, which is a bit new.