A formal document ordering you to testify on a particular date and bring the specified paperwork and records about your distribution site.

An informal request for you to voluntarily appear on a particular date and bring the specified paperwork and records about your distribution site. Sami McDonald

Some federal administrative agencies can issue subpoenas as part of their:

Rulemaking power.

Adjudicative power.

Investigative power. But administrative agencies are still obligated to act within the constraints of:

Federal statutes.

The U$.$S$.$ Constitution and federal statutes.

State law. To conduct an investigative search, administrative agencies:

Always need a warrant supported by probable cause.

Never need a warrant supported by probable cause.

Sometimes need a warrant supported by probable cause, but not always.