Penalty fares are used to discourage casual fare evasion and disregard for the ticketing rules without resorting to (in the case of railways in Great Britain) the drastic and costly step of prosecution under the Regulation of Railways Act 1889 or other laws dealing with theft and fraud.
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The London Regional Transport (Penalty Fares) Act 1992 and the Greater London Authority Act 1999 allows Transport for London to charge penalty fares under similar but not identical rules.
Penalty kick | penalty kick | Penalty card | Fine (penalty) | penalty kick (football) | Penalty flag | penalty flag | penalty card | penalty box | La Fare-les-Oliviers | La Fare-en-Champsaur | Death penalty signed by People's Socialist Republic of Albania | A ''You Are The Ref'' cartoon showing an incident in a penalty shootout. Fernando Torres |
Many train operating companies (TOCs) such as Southern have altered their penalty fare policies and have removed many permit to travel machines; while others, such as Southeastern and Chiltern Railways, have installed more machines recently.