For heaven's sake. Assuming that they have arrested the correct person, he and his brother had a stack of tactical explosives that they were throwing around with abandon, as well as having bombed a major public event with loss of life and a huge level of injury. Of course the public (via its designated law enforcement agents) has a legitimate interest in establishing whether all possible explosive devices have been found and neutralized.
Bear in mind that for his trial (if he doesn't plead guilty) they'll have victim witness testimony from a person who says he saw the suspect perform a bag drop shortly before the bag exploded and blew his legs off; abundant photographic evidence, with probably more to come; whatever forensic evidence they found at the brothers' shared home; and all sorts of other information gathered in the days before he was found and captured. There'll be camera footage from the 7-11 that they held up, testimony from the person they carjacked (to whom they apparently admitted that they were the bombers), forensic evidence from the car, vast amounts of ballistics evidence...I could go on and on.
There is no way that his conviction is going to be pendant on what he says before being mirandized, and the public safety exception is about as justified here as it could ever possibly be - far more so than that in Quarles. That was a guy who allegedly had had a gun and was wearing an empty holster when caught. True, abandoned guns can be dangerous. A bumper variety pack of bombs, which it appears this suspect had and employed on multiple occasions in the last few days, presents a substantially greater risk to public safety.
Imagine that the guy knows his Miranda rights, refuses to talk and demands a lawyer. The unsaid implication of the supposed public-safety exception is that the police will do anything to get the guy to talk, constitution be damned.
No it isn't, because it would be a huge gift to the defense counsel who would rightly attack any infringement of his civil liberties (eg if they beat him up or worse). I've heard Alan Dershowitz make such 'ticking time bomb => anything goes' arguments but I think they're fatally flawed, both legally and logically.
The previous poster didn't say "We can assume they have arrested the correct person", they said (in effect), "If we assume for the sake of argument that they have arrested the correct person". Your point is absolutely valid, but entirely separate from this discussion of Miranda.
I'm assuming it only for the purposes of making my argument here on HN, not for determining the guy's guilt or innocence. I have to make some assumptions because I haven't seen any photographs or any evidence myself, so I have only a 3rd hand opinion based on news reports. The people who arrested him, by contrast, are in a position to identify him as the person they saw shooting at them earlier.
If I was sure they had arrested the right guy and that he was guilty of all those things, I wouldn't have put the 'assuming...' in there at all, but just stated what came after as fact.
To be fair, this was probably just a matter of phrasing on his part. Instead of using the word "assume" (triggering a pithy response) he should have stated this:
If the man the police have arrested is indeed
Dzhokhar Tsarnaev, the man implicated in the
bombings...
Bear in mind that for his trial (if he doesn't plead guilty) they'll have victim witness testimony from a person who says he saw the suspect perform a bag drop shortly before the bag exploded and blew his legs off; abundant photographic evidence, with probably more to come; whatever forensic evidence they found at the brothers' shared home; and all sorts of other information gathered in the days before he was found and captured. There'll be camera footage from the 7-11 that they held up, testimony from the person they carjacked (to whom they apparently admitted that they were the bombers), forensic evidence from the car, vast amounts of ballistics evidence...I could go on and on.
There is no way that his conviction is going to be pendant on what he says before being mirandized, and the public safety exception is about as justified here as it could ever possibly be - far more so than that in Quarles. That was a guy who allegedly had had a gun and was wearing an empty holster when caught. True, abandoned guns can be dangerous. A bumper variety pack of bombs, which it appears this suspect had and employed on multiple occasions in the last few days, presents a substantially greater risk to public safety.