Извините, не хочу показаться спорщиком, но если судить по ответу
С 1.12.2014 отменяется TWOV в Великобритании50B. The requirements to be met by a visa national seeking leave to enter the United Kingdom under the transit without visa scheme are that he:
(i) has arrived and will depart by air; and
(ii) is genuinely in transit to another country, meaning the purpose of his visit is to travel via the UK en route to another destination country, and he is taking a reasonable transit route; and
(iii) does not intend to access public funds, undertake employment or study in the UK; and
(iv) intends and is able to leave the UK before 23:59 hours on the day after the day when he arrived; and
(v) has a confirmed booking on a flight departing the UK before 23:59 hours on the day after the day when he arrived; and
(vi) is assured entry to his country of destination and any other countries he is transiting through on his way there.
Leave to enter under the transit without visa scheme
50D. A person seeking leave to enter the United Kingdom on arrival under the transit without visa scheme may be admitted for a period ending no later than
23:59 hours on the day after the day on which he arrived, with a prohibition on employment, study and recourse to public funds, provided the Immigration Officer is satisfied that the requirements of paragraphs 50B and 50C are met
Значит - надо. Так?