They will post you some high value (£5,000) Traveller's Cheques to deposit in your bank. Then they will ask you to send part of the value (£1,200) to somewhere else, to allow candidates to pay their own travel fares to get to you.
By the time your bank find out the Traveller's Cheques are fake, the £1,200 has left your account.
Happens every day with a variety of cover stories and amounts.
I had wondered where the scam was here, the penny would have dropped when they sent more than asked for.