text: Immigration Appeal Tribunal, which hears, with leave, appeals from decisions of adjudicators. The Lord Chancellor's Department has had full administrative responsibility for the appellate authorities since 1987. 122. Persons detained as the subject of deportation proceedings may apply to the independent appellate authorities for bail while an appeal is pending against the decision to make a deportation order, or against the destination on deportation. A person who has a right of appeal while in the United Kingdom against the decision to refuse him leave to enter or against the decision that he requires leave to enter may apply for bail. Those who are detained for more than seven days pending a decision to give or refuse leave to enter the United Kingdom may also apply. In all cases, however, where a person is detained under powers contained in the 1971 Act, habeas corpus may be sought from a court. 123. Advice and assistance in presenting appeals before the independent appellate authorities is available free of charge from the United Kingdom Immigrants Advisory Service (UKIAS), which receives support from public funds but is independent of government control. 124. The numbers detained under deportation and illegal entry powers in the years 1986-1988 are set out below; such statistics are published regularly in the annual reports of the Home Office Immigration and Nationality Department. The large increases in the numbers detained in 1988 reflect the greater number of cases dealt with as a result of more effective enforcement procedures, including the increased use of supervised departures following the new powers in the 1988 Immigration Act (see paras. 187-195 below, particularly para. 189). The great majority of those detained were held for less than a month. There are no statistics specifically on the numbers of detainees who apply for bail. CCPR/C/58/Add.6 page 29 
analysis: The text appears to be discussing the legal framework and procedures surrounding immigration and deportation in the United Kingdom. It mentions the Immigration Appeal Tribunal, the Lord Chancellor's Department, and the Home Office Immigration and Nationality Department, which suggests a focus on immigration and asylum issues. The text also mentions bail, habeas corpus, and appeals, indicating a legal context.