I'm not sure I'm getting you. The OP asked about BM's DNA on the bike and I answered about BM's DNA. I did not extrapolate to include other people's DNA on the bike.
I do think it's weird that Barry's DNA is only on the seat. If, as he says, he had wrestled the bike out of her car for her on Saturday, I would expect his DNA elsewhere on the bike. I just think this illustrates another one of BM's lies.
^
^rsbbm
According to the AA, Barry's DNA was found on the
bicycle seat only. His DNA was not found on the bicycle grips, handlebars, or brakes. Kinda weird that it was only on the seat since according to the AA, he said that he pulled Suzanne's bike and helmet out of her vehicle for her sometime on Saturday.
AA
^^
bbm
@Tumbleweed, sorry that my response was unclear.
When responding to OP's citation that according to the AA, BM's DNA was limited to the seat, and not elsewhere (i.e., bicycle grips, handlebars, or brakes), and opined it was weird, I did not adequately explain why I did not think it weird-- once reminded about the potential additional contributors from the shop (i.e., mixed sample, compounding DNA analysis). In other words, not all samples are created equal.
It was a different post I clarified how the AA (or PH) reporting a match only on the seat does not necessarily mean this was absolute and final for DNA bicycle evidence, and how by trial, a subsequent scientific DNA test meeting the requirement for DNA evidence, using the mixed sample, might show that BM's DNA was also not be excluded from the bicycle grips, handlebars, or brakes. MOO
ETA:
DNA analysis is complicated and I'll never understand how Judge Lama could justify striking the DNA expert as a penalty for a discovery deadline violation!
It's nothing like TV!
Did not intend my simple comparison between a single contributor control sample and a mixed sample to be unclear.
Last quarter, we learned that only one-tenth of 1 percent of human DNA differs from one individual to the next, suggesting forensic DNA analysis is roughly 95 percent accurate. Given these finer points of DNA analysis are presented at trial by experts, their reports including terms such as "results for legal purposes," "evidentiary value of DNA," and scientific DNA tests meeting the requirement for DNA evidence, are generally directed at other experts and tend to bypass us.
) and grabbed the helmet with his thumb on the inside/fingers on the outside? In the kitsch love movie I can imagine a husband, carefully putting the helmet on his beloved wife's head, wishing her well for her bike trip and passionately kissing her goodbye. But I can't imagine the same scene with BM.