Politics is the process and method of gaining or maintaining support for public or common action, the conduct of decision-making for groups. Although it is usually applied to governments, political behavior is also observed in corporate, academic, religious, and other institutions. Political philosophy is the study of topics such as politics, liberty, justice, property, rights, law, and the enforcement of a legal code by authority: what they are, why (or even if) they are needed, what, if anything, makes a government legitimate, what rights and freedoms it should protect and why, what form it should take and why, what the law is, and what duties citizens owe to a legitimate government, if any, and when it may be legitimately overthrown, if ever. Political science is the field devoted to studying political behavior and examining the acquisition and application of power, or the ability to impose one's will on another. Its practitioners are known as political scientists. Political scientists look at elections, public opinion, institutional activities, the ideologies behind various politicians and interest groups, how politicians achieve and wield their influence, and so on.
The privilege of peerage is the body of special privileges belonging to members of the British peerage. It is distinct from Parliamentary privilege, which applies to those peers serving in the House of Lords, and members of the House of Commons, during and forty days before and after a Parliamentary session. The privileges have been lost and eroded over time. Only three survived into the 20th century: the right to be tried by other peers of the realm instead of juries of commoners, freedom from arrest in civil (but not criminal) cases, and access to the Sovereign to advise him or her on matters of state. The right to be tried by other peers was abolished in 1948. Legal opinion considers the right of freedom from arrest as obsolete. The remaining privilege was recommended for formal abolition in 1999, and may be retained, arguably, by peers whether members of the House of Lords or not. Peers have other rights that do not formally comprise the privilege of peerage. For example, they are entitled to use coronets and supporters on their achievements of arms.