"Teachers are at the forefront of that, enforcing that," Mr. Paragano said.
Chief constables in England give warning that enforcing Mr Straw's curfews will require a lot of manpower.
(The American and British air forces already do that, enforcing a no-fly zone over much of Kurdish territory).
Besides the fact that conditional referral could exacerbate the negative consequences of voluntary disclosure, it was highlighted in this study that enforcing conditional referral could also deter prospective patients from seeking treatment.
Experts have argued that enforcing age-checks on such websites would be challenging.
It added that enforcing marijuana laws is estimated to cost around $3.6bn a year.
While these are signs that enforcing the agreement will be difficult, the pact itself is estimable.
Some observers, though, worried that enforcing new regulations and monitoring community programs would prove too unwieldy to manage.
In any event, diamonds are so easily smuggled, and so ridiculously valuable, that enforcing a trade ban is extremely difficult.
Gary Amelio, the executive director of the city's pension system, says that enforcing Proposition H is not his role, either.
Some teachers have complained that enforcing the policy takes time away from academic instruction and burdens them with paperwork.
