Any carrier who does not comply with his or her duty and take all reasonable steps to ensure that the passengers disembark in the manner required by the immigration officer attracts to himself or herself a criminal liability. If a ship with 100 people on board is docks in Ireland and an immigration officer says that all passengers intending to land in or pass through Ireland must get off the ship, a carrier who fails to ensure that all passengers are cleared from the ship during the time the immigration officer is present to check their documents will commit an offence and attract penalties for each person he or she does not require to leave the ship in accordance with the directions given by the immigration officer. Likewise, if a carrier was completely relaxed and casual and allowed passengers to spill out and go in every direction but the direction in which the immigration officer indicated they were to go, the carrier would be liable. The purpose of all of this is to impose upon carriers the obligation to ensure that their passengers enter the State in a manner in which immigration officers can exercise the requisite degree of control.