Would you have any problems with the police if for some erroneous motive you or someone in your family were suspected and required to drink 6 cups of laxative and perform as indicated here? Another new item I have read about is police tasering a suspect (twice) for refusing to give a urine (I think, maybe blood) sample.
The problem with allowing this kind of stuff is that once precedent is set for them to forcibly extract bodily fluids from someone for a crime there isn't too much sympathy for, the door is open to expand this to all kinds of stuff.
If I was seen or suspected of swallowing a bag of dope, I don't believe that I would have a legitimate complaint. Especially, since that act does present a life threatening condition, which the cops are now responsible for.
Your comment about the Taser is totally irrelevant to this thread.
I certainly would. The police aren't qualified in and of themselves to administer any kind of medical treatment, much less against a person's will. Perhaps with a court order, under the proper medical supervision, but not as described here.
I once read about a similar case (I think it was in a George Will editorial) about a woman apprehended at an airport who was suspected (rightly) of having swallowed a number of receptacles of cocaine. In that case, the authorities simply waited for nature to take its course.