The trailer was in Britain from January

The trailer was in Britain from January.On Friday, the day of the explosion, the truck was at South Mimms at 8am, before travelling to wasteland at River Road, Barking, Essex. JASON BENNETTO

Crime Correspondent
The terrorists responsible for the bomb in Docklands, east London, spent several days travelling down from Scotland to London on a carefully planned route, it was disclosed yesterday.Anti-terrorist officers, using information provided by the public and intelligence sources, have been piecing together the movements of the IRA bombers.The blue flat-bed lorry with false number plates, which was used to carry the explosive device, was brought over to the mainland by ferry from the Co Antrim port of Larne, and landed in Stranraer on the west coast of Scotland.On 7 and 8 February, it was taken from Stranraer to Carlisle and then to South Mimms, Hertfordshire. He knows about television, appreciates and understands it”.Read Thomas Sutcliffe on the “virus” of American TV on page 7 of today’s Weekend section. The award, in memory of the TV critic Peter Black, is for work “which illuminates and brings understanding to the world of broadcasting”.
The judges said of Sutcliffe that “where other reviewers may be too eager to pick off some easy targets he is the person you turn to if you want to read a review of a good programme.

Thomas Sutcliffe, the Independent’s television critic was yesterday named the Broadcasting Writer of the Year in the What the Papers Say awards. Bishops and above are grade A, but ministers of “fringe free churches” and monks and nuns “without special responsibilities” are C1.. University lecturers are B, as are qualified teachers aged 28 or more, vicars, chief inspectors of police and banks clerks “with special responsibilities”.People classified as lower middle class include: curates, students who are on grants, radiographers, telephonists, driving instructors and foremen in charge of 25 or more employees, “doing mainly supervisory work”.Are you an overseer, a plumber, painter, bus driver, the owner of a shop with no employees or fireman? Then the marketing industry sees you as social grade C2.London taxi drivers, bus drivers and shunters are also C2, even though bus conductors, traffic wardens, provincial taxi drivers and ticket collectors are a rung down the social ladder – grade D.Religious distinctions are also surprising. They are upper middle class if they have 10 or more employees. But an editor or senior journalist on a national publication is upper-middle class regardless of circulation.In the academic arena, only university professors and librarians in charge of “a really major library” make grade A.

The research reveals that a nun of any denomination is a C1, university lecturers are grade B, rubber workers and RAF aircraftsmen are C2, but town clerks and senior retail buyers are A.Meanwhile, the headmaster of a public or grammar school is not necessarily the town clerk’s social equal. He or she is only an A if his school contains 750 or more pupils, while the captain of a merchant vessel only qualifies if the ship is 5,000 or more tons.Farmers need not try so hard. At 7.01pm it exploded.There was further disruption in London yesterday as the emergency services dealt with a series of false alarms. In Birmingham and other cities throughout the country security was stepped up by the police.Gerry Adams, the Sinn Fein president, yesterday sent a letter to Downing Street urging John Major to set a date for all-party talks to help him persuade the IRA to restore the ceasefire.The reply is expected to urge Mr Adams and the IRA to abandon the return to violence.

But ministers are not rejecting the Sinn Fein president’s call for a date for talks out of hand.They are seeking to reach a compromise by offering a target date for all-party negotiations, after the elections, which Sinn Fein oppose.In Ireland yesterday rallies calling for the restoration of the IRA ceasefire were held on both sides of the border.Ribbons for peace, page 2. MARIANNE MACDONALD

Media Correspondent
Those mysterious categories by which advertisers judge our social class have been laid bare in a booklet published this week.It reveals that contrary to common belief nuns are very lower class, town clerks as posh as they come, and those in the rubber industry can consider themselves socially equal to CID detective constables.The booklet by Carat, the media buying group, was published to provide a detailed guide to advertisers on the standard industry classifications of grade A (upper middle class), B (middle class), C1 (lower middle class), C2 (skilled working class) or D (semi-skilled or unskilled working class).However, many distinctions appear bizarre. At about 4pm the lorry bomb was primed and driven to Docklands where it was parked on the road. This follows appeals by the police for owners of surveillance cameras to hold onto their film for detectives to examine.The lorry was brought from Northern Ireland on the ferry to Stranraer on the west coast of Scotland.Commander Grieve disclosed that on the 7 and 8 February it was taken with a red trailer to South Mimms, Hertfordshire.On Friday, the day of the explosion, it was driven to waste land in Barking, East London. We know that some criminals are motivated by money and we can all use that to get the information we need.”He said information leading to the arrests came from the public via an anti-terrorist hotline on 0800 789 321.Further details of the movements of the blue flat-back Ford Cargo lorry used in the Docklands bomb have also been revealed. Four of those arrested were held in the Maidstone area of Kent.