In justice and law, house arrest (also called home confinement, home detention, or, in modern times, electronic monitoring) is a measure by which a person is confined by the authorities to their residence. Travel is usually restricted, if allowed at all. House arrest is an alternative to being in a prison while awaiting trial or after sentencing. While house arrest can be applied to criminal cases when prison does not seem an appropriate measure, the term is often applied to the use of house confinement as a measure of repression by authoritarian governments against political dissidents. In these cases, the person under house arrest often does not have access to any means of communication with people outside of the home; if electronic communication is allowed, conversations may be monitored. History Judges have imposed sentences of home confinement, as an alternative to prison, as far back as the 17th century. Galileo was confined to his home following his infamous trial in 1633. Authorities often used house arrest to confine political leaders who were deposed in a coup d'état, but this method was not widely used to confine numerous common criminals. This method did not become a widespread alternative to imprisonment in the United States and other western countries until the late 20th century, when newly designed electronic monitoring devices made it inexpensive and easy to manage by corrections authorities. Although Boston was using house arrest for a variety of arrangements, the first-ever court sentence of house arrest with an electronic bracelet was in 1983. Details Home detention is an alternative to imprisonment; its goals are both to reduce recidivism and to decrease the number of prisoners, thereby saving money for states and other jurisdictions. It is a corrective to mandatory sentencing laws that greatly increased the incarceration rates in the United States. It allows eligible offenders to retain or seek employment, maintain family relationships and responsibilities and attend rehabilitative programs that contribute towards addressing the causes of their offending. The terms of house arrest can differ, but most programs allow employed offenders to continue to work, and confine them to their residence only during non-working hours. Offenders are commonly allowed to leave their home for specific purposes; examples can include visits to the probation officer or police station, religious services, education, attorney visits, court appearances, and medical appointments. Many programs also allow the convict to leave their residence during regular, pre-approved