I think you have to look at what the electronic monitoring bracelet can do for you and look at the population that would be using it.
For example, people under a removal order generally don't want to go home, so that may not be the best technology to use for that group. They could just cut the bracelet off and, by the time you got to them, they would be gone. They would have disappeared.
We use them at the CBSA in particular types of cases, such as those people who are on security certificates and whose goal is not necessarily to leave, but to remain in Canada. Because they probably are going to be here for some time, it's the best option when you consider that with respect to detention.