arearadar said
How did the Malaysians identify supposed MH370 ?
No Secondary, no turn and observe as no communication.
Per March 11 (I believe it was) press conference said radar hits were corroborated in at least some areas with civilian radar (we have no details of this, just that Daud said this). Hits being a feasible flight path for MH370, approximate rough idea of specs on unidentified blips and process of elimination (how many 777-like 'unidentified' planes are flying around at 2AM?) would lead to a very high degree of certainty, I would imagine.
Also, they (Malaysia) and Vietnam both recognized the turn within moments of it happening, somehow, as both countries said as much in the first couple days. It is possible the turn was before Transponder dropped, or that both countries had secondary on it at that time, but they are just not telling us that.