I wish we saw more invocations of speedy trial rights. Trials MUST begin for felony charges in ND within 90 days of a defendant invoking those rights (must be invoked within 14 days of arraignment)[0].

[0] https://ndlegis.gov/cencode/t29c19.pdf

There are a bunch of ways they get people to sign away their right to speedy trials.

Defendants don't invoke that because in most states and federally, they build the case against you slowly over a long period of time before arrest, then stall as long as possible for discovery, then when they finally fulfill discovery they overwhelm you with a bunch of useless stuff so that it takes forever to get the useful information. Invoking right to speedy trial means the prosecution gets a very strong advantage to the defense.