By FRANK GREEN Richmond Times-Dispatch

Prosecutors are asking for an additional 12 months in prison for an inmate caught with a finger-sized cellphone smuggled into a federal prison in Petersburg.

A lawyer for Kevin Lavon Smith, 32, is asking for a sentence of no more than time already served since his Nov. 15 arrest — the day before he was to have been released from prison after serving a three-year term for an unrelated crime.

Smith is set to be sentenced Monday by U.S. District Judge David Novak. Federal sentencing guidelines call for a prison term of six to 12 months.