I think in one of the Scandinavian countries, people cannot be charged or punished for attempted or actual escapes from prison, jail, or custody, as the desire for freedom is assumed to be a natural human motivation.
Trying to escape from prison is victimless. Scams, thefts and rapes have victims. Some argue that crimes without victims like using drugs are not crimes. They, of course, could be illegal and result in fines and related but not in restrictions of liberty like imprisonment.
In this framework, yes. But see, even if no time is added to the sentence he may lose eligibility for early release. And he will be prosecuted for any crime committed in the process. Look, I'm not advocating for A or B. Just being descriptive.
This is true in the US as well, at least where I live. Judges specifically inform the jury that they cannot treat a police officer’s testimony with any more weight or as any more correct than any other witness.
Whether juries actually pay attention to this or not I cannot say.
I just had jury duty in one of the most liberal states in the union.
I had the prosecuting lawyer explicitly ask us during jury selection if we would "take into account that police officers have training which [we] wouldn't have access to as a civilian." And repeated it during the trial. All without a peep from the judge. So YMMV on that.
On an unrelated note, the prosecuting lawyer then proceeded to systematically eliminate exclusively women and minorities from the jury, and specifically removed every woman of color. Which I'm sure was a total coincidence.
This was new to me and I'm not sure but I think I might have heard that it was because of some case in the 70ies or something.