we see this all the time

Inmates typically do not choose to return to prison once they are released, but Thursday morning officers at Folsom Prison were dealing with a former prisoner who snuck back on campus.

Correctional officers arrested 48-year-old Marvin Lane Ussery for being on prison grounds. Ussery was paroled in 2009 after serving time for a robbery charge, he was held at California State Prison, Sacramento, also called New Folsom Prison.

Officers say Ussery snuck onto the prison grounds overnight, and was spotted on thermal imaging equipment around 1:30 a.m.
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However, officials are not sure why he was there.

Correctional officers admit a growing trend of former inmates sneaking back onto prison grounds and leaving a bag of contraband, like cell phones or drugs, for inmate crews to pick up later. However, at this time there is no evidence Ussery brought contraband with him to leave on the prison grounds.

More than two-dozen correctional officers searched inside the prison fences for any trace of contraband, and have come up empty-handed.