Why does Red keep the keys in OITNB?

In the context of the TV series "Orange Is the New Black," Galina "Red" Reznikov keeps a set of illegal keys as part of her contraband operation within the prison. These keys are likely used to facilitate her smuggling and trading activities, which are central to her power and influence in the prison.

When her bunk is searched and the keys are discovered, it becomes clear that these keys are a crucial tool for her operations, allowing her to maintain control and leverage within the prison's social hierarchy1.