A friend, an Australian citizen, was removed from the UK after being caught overstaying by 15 years. She was arrested at a MOT inspection point and was found to be in the United Kingdom illegally. Three years later she flew to Scotland after booking and paying in advance for everything. She was detained at Glasgow airport and put on a flight back to Australia. She lost a total of 3,600 dollars. The following year, she flew to NZ and was refused entry. Another $2000 lost in prepaid accommodations and activities.
Is there a period of time that must pass before she can apply for a visa to travel to the UK or other Commonwealth country?