It was a gimmicked lock and it's use went right past every non magically inclined person I know.
For example, when an audience member seemingly could open a rotary combination lock without Derren providing a valid combination, was that (a) psychology, (b) trickery to force the choice of a valid combination, (c) dual reality, (d) a padlock prop possessing an externally accessible "quick release" button or lever of some kind, (e) some other method, or (f) impossible to decide without inside information?
Derren didn't even tell the spectator in which direction to turn the dial on the lock, making it very obvious that the dialling process was immaterial to the opening of the lock.
Anyone who's used a real lock of that type would know that the dial has to be rotated alternately anticlockwise and clockwise (or vice versa
Azrael 5' s comment regarding the direction of rotation misses my point. Anyone who's used a real lock of that type would know that the dial has to be rotated alternately anticlockwise and clockwise (or vice versa, but the first two numbers of the combination are then different). Few members of the live audience would know that, but the much larger TV audience would contain many people who do.
For anyone familiar with the real lock, therefore, the correct combination definitely wasn't entered, so any explanation must lie with the lock itself. For anyone unfamiliar with the real lock, the possibility of a stooge being used, or some amazing last minute suggestion process would perhaps be considered, but both were rather implausible. Hence, once again, the lock itself is the only thing left to suspect.
I didn't post that amount of detail earlier because I was hoping for opinions that weren't influenced by that. I never suggested the effect used a psychological force. Psychology/misdirection/showmanship is relevant when the effect is accomplished using a real lock, but not to force anything - rather to give the impression that a valid combination needs to be found.
For example, when an audience member seemingly could open a rotary combination lock without Derren providing a valid combination, was that (a) psychology, (b) trickery to force the choice of a valid combination, (c) dual reality, (d) a padlock prop possessing an externally accessible "quick release" button or lever of some kind, (e) some other method, or (f) impossible to decide without inside information?
The padlock was left with the audience member for quite some time, which would be very risky if it was a trick padlock. On the other hand, forcing the audience member to choose a valid combination seemed very hard. Then again, the presentation was roughly that of any conventional conjuring trick, so to avoid accepting the "obvious" explanation, you'd need to suppose it wasn't a trick, but what else could it be?
*edit* I haven't said at all that I am sure how the effect was done, only how I suspect it was done, based on my experiences with a lock I possessed and experimented with. I've also said that once the magician somehow enables a trick lock to be opened, the spectator might simply open it without having dialled her guessed combination.
If it is assumed that the effect is a conjuring trick, attention must focus on what seemed to be the only relevant object used - the lock, i.e., the lock would be suspected of having been specially prepared. Our difference of opinion is then over the nature of what special preparation of the lock is necessary.
*snip*
Note that the use of force is specifically discouraged, the emphasis being on finding the combination. However, no mention is made of direction of rotation, etc. Why pay for a relatively foolproof trick lock, but then slip up by giving instructions for unlocking it which are obviously wrong to anyone who has used a real lock of that type?
*snip* Overall, it took about one minute to get the lock open, and Derren never offered an explanation of how the numbers of the combination might have been suggested to her earlier.
If someone chooses to watch the video closely, DJM, it's clear that the spectator doesn't follow the correct opening procedure, so whether there's any significance in Derren's nodding is irrelevant. My point is that anyone who has used a real lock of that type will know that the correct procedure is elaborate, and will be able to deduce immediately that the unlocking of the lock in the show is fake.
