Immigration offenders are referred to ICA's Enforcement Division (ED) which oversees investigation, prosecution and repatriation matters. Prosecution officers work together with public prosecutors at the Attorney-General's Chambers to ensure that offenders are lawfully detained and given trial. Examples of common offences include the harbouring of immigration offenders, employing immigrants illegally or entering marriages of convenience. Home owners who have been found guilty of renting their houses to immigration offenders and not carrying out one or more of the mandatory checks may be sentenced to a jail term, fine or both.