Garrus-1

Garrus-1 is a penitentiary from the Generation 1 continuity family.

Garrus-1 is a prison on pre-war Cybertron. The naming scheme it started would eventually be used for the more famous Garrus-9.

Fiction

IDW comics continuity

A senator friend of Orion Pax saved him from incarceration after he spoke out against the Senate, saying he didn't want to see a good 'bot like Pax end up in a place like Garrus-1. Chaos Theory Part 2