In the scene where Goodman fires at Bodie's Ford Capri as Bodie and Doyle are chasing him, the car is seen to swerve violently. This is because it suffered a genuine blow-out while stuntman Peter Brayham was driving it. This was explained in the story by an unscripted shot of Goodman firing at the car's tyre.
Although there appears to have been an unusually extended production schedule for this episode, some of that was due to reshoots on the scene of Suzy falling from the hotel window as the initial attempts at the special effects on this proved unsatisfactory.
This was edited a scene where both Bodie and Doyle are rinsing Cowley behind his back in the locker room was removed from this episode when it was re run on TV.
Betty reads from the 1953 newspaper that Suzy Carter "fell" from the building on the third of June, which was the Wednesday, and she adds that a lot was going on that day. Now in fact, the Coronation of Her Majesty Queen Elizabeth II actually occurred on Tuesday the second of June, 1953, but certainly there would have been a lot of other news in papers all week, from Tensing and Hillary's conquest of Everest on the Friday the 29th of May, to the first British Coronation in over sixteen years, and it is a fact that when major news occurs at a particular time, what would otherwise be front page news is pushed aside. Note however that Ray Doyle later says Suzy was pushed out the window on the second, which is not consistent.