"When people are under the influence, the extended shock has shown to be a problem." [LINK]
Without putting words into Chief Burton's mouth, I'm fairly certain that, by the word "problem", he means that people die. As in "DEAD".
What else could he be hinting at?
Herein lies a problem.
Taser International, while recommending minimal use, simultaneously and strenuously denies that repeated taser hits are in anyway dangerous. See their claim quoted here [LINK].
Their chief minion, "Dr." Mark Kroll (advisor, Board of Directors, head of their so-called "Medical Safety [cover-up?] Board"), has claimed that taser hits are similar to ping pong (table tennis) balls in that even endless electro-torture would be "safe"; "If one ping-pong ball hit to the head does not kill you, 1,000 probably cannot either." [LINK].
So, in addition to the "problem" mention by Chief Burton (taser deaths), there's also the little problem that the stun gun salesmen are fork-tongue scum that repeatedly deny the potential lethality of their product (while burying legal admissions deep within the Legal Warnings). Every honest and informed observer knows full-well that tasers are perfectly capable of causing or contributing to death. And yet the OEM denies it.
It's pure insanity to allow this discrepancy to remain unresolved. And that means holding the OEM to account for their deceptive marketing. You cannot 'agree to disagree', see [LINK].