Location, location, location -- it just might save Jenelle Evans' saving grace this time around.

The mercurial Teen Mom star could thwart further time behind bars based on WHERE her most recent arrest occurred, sources close to the embattled reality star tell Breaking Celebrity News exclusively. As we previously reported, Evans is on unsupervised probation as part of her sentence on drug charges, and any infraction of her probation requirements could land her back in jail.