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Originally Posted by Acres per Second
1) Drifting would be essentially simultaneous/synchronous if the boats are the same—or linked together by a line. The only "high-tech" required would be GPS to occasionally restore position. A pair of different points on the same shore could be a check, using stop watches with a "two-lap" capability. Parallax errors can be minimized (though tiny anyway), and could still be computed.
2) There's also no reason that two MPs can't be situated on shore using two measured points on the opposite shore. Just as in radar, any error there would be fully in the offenders favor.
One stopwatch: it needn't be any more "high-tech" than that!  |
The MP boats already have Raymarine radar. It can track the bearing, speed and distance of 24 boats simultaneously and is not affected by relative bearing like police radar. It is much more high tech than anything used in a police car. Checking speed with it is quite easy but I'm pretty sure it's not approved for use as a speed measuring tool and would have to be backed up with sworn witness testimony and speed estimates.