1. Imprisonment first and foremost must include a separation from the home or domestic residence - so a change of residence should be very evident (12th from the 4th - or 3rd house) if she is to be convicted, while at the opposite end (no prison sentence) the 2nd shows a life with family members (11th from the 4th).

2,  Restricted movements  and confinement will be indicated by the 12th house and all connections to the 12th. Malefics occupying the constellations of the planets posited in the 2nd and 12th, the occupants of these two houses owning malefic houses, malefic planets in the constellations of the lords of these houses, along with the lords of these houses - would all threaten sentencing to include imprisonment/incarceration. If the lord of the 1st is also connected with any of these houses - then this also supports a contention that imprisonment is a strong possibility.

3, Rahu is a chief significator for jail, so a malefic in the 2nd or 12th in the star or sub of Rahu - and connected with the 2nd or 12th - supports a sentence involving prison. Favorable aspects to the significators of the 12th house and/or the 12th cusp, and hard aspects to the significators of the 2nd house and/or 2nd cusp can also suggest an unfavorable outcome - such as imprisonment.