Torture used properly can be very effective in eliciting information(Which is why it has never ceased to be used even after thousand of years)
As a previous poster said some of the info must be verifiable.
They must not ask leading questions.
If there are several prisoners who should have the same knowledge they can cross check against each one.
You’ll always hear the old chestnut that the prisoner may be giving a prepared cover story.
For that you must have a very good memory,something that becomes less good when you’re in intense pain and any interrogator worth his salt will be able to surprise you and confuse you into veering off the story track.
Actually a good interrogator can get wads of information without torture.
In our particular job we were told that the liklihood would be that if captured we would by that time be physically exhausted,be suffering from sleep deprivation anyway(which is one of the best tools the interrogator has)probably be wet and or cold,have muscle strains etc. etc.plus the psychological “Shock of capture” and so were trained accordingly.
You dont go into T.Q. warm,dry,well rested and fed.
Fear and disorientation,plus isolation are big breakers.
We were told that on capture we would most certainly be tortured.
If captured by the Russians we could expect to questioned for three days and then executed as by then our information would be a bit dated and they thought that we were too dangerous to keep alive.
(Melodramatic I know but thats what they told us.)
The I.R.A. regulary used torture on their own people and also used torture as an execution method for any British soldiers unfortunate enough to be captured.
If captured by Muslims NEVER EVER have atheist on your dog tags or you will suffer even more for it.
Slightly off topic but perhaps relevant
To address some of the points made by other posters the "Winning the prisoners confidence etc.etc."is more about getting him to change sides rather then interrogation and the information gleaned from that will not be up to the minute tactical stuff but long term logistical info.
They usually go through this stage after the questioning(if at all)proper as long term prisoners and isn’t often very effective,most people are loyal whatever their race or creed.
(Though interestingly I.R.A. prisoners were notorious for selling their own mothers if need be down the river with very little coercion or bribery usually for petty grudges held against their comrades for years and years,his mate got off with the girl he had always fancied or wouldn’t lend him a few quid when he wanted to buy a round of drinks,I kid you not)
The thing about staying silent is mostly true but you are obliged by the conventions to give the "Big Four"NRN,DoB.
If you start talking on subjects other then that even about totally innoccuos topics like the weather or your favourite colour for example it is very hard to stop.
Apart from building up a picture of your character and background the “I” can easily trick you into indicretions .
Also your innocent "yes"to an inquiry as to wether you’d like to sit down is recorded by concealed tape machines and broadcast over the airways of Bongoslavia as "yes"the British regulary use germ warfare on civilians .
R to I is only a part of your training but for the "I"it is ALL of his training,no matter how cunning you think that you are.
The poster who said that EVERYBODY cracks under torture is totally right,the idea is to delay and draw out that point.
Some years ago there was a plan to put all N.A.T.O. troops through in depth R.toI. training but the idea was dropped when they found that troops who weren’t of the highest level of motivation were suffering psychological problems due to the mental and physical stress of the experience.
I think that the allies Questioning in the M.E.may not be as effective as it might be due to cultural and psychological differences from our own in the west.
Speaking Arabic and having read a book about the Koran doesn’t cut it.
But thats only an opinion and I could well be wrong.
I’ll finish now if theres still anyone left awake.