Mubārak, who had suffered an apparent heart attack while awaiting questioning, was formally detained while hospitalized.
Technically, the pro-government activists should be arrested, too, but opposition groups say they do not always end up being formally detained.
Mr. Chen was formally detained on Saturday under "suspicion of damaging commercial reputation," said the police in Changsha, the capital of Hunan Province and home to Zoomlion's headquarters.
The eight suspects, who have not been formally detained, are still stationed in Afghanistan, though on a different base and under increased supervision, another military spokesman, Lt. Col. Dave Connolly, said.
While some were held only briefly, and several activists and dissidents were formally detained or sent to re-education through labour, others were held for weeks or months at unknown locations in breach of the current law, say experts.
We recommend that the reasonable suspicion threshold be introduced at the point at which the person being examined is formally detained, which the bill requires to happen after an hour of questioning".
One of the four soldiers had been formally detained and the others were still being interrogated as suspects, the spokeswoman for the Paris prosecutor's office, Agnes toldAssociated Pressold Associated Press.
And now he has been "formally detained," according to the Chinese formula, which allows the government to keep him in jail for 30 days while it is decided what charges will be brought against him.
The same was true for Xu Caihou, a retired vice-chairman of the military high command, who was formally detained last year (he died of cancer on March 15th), and would be true for his fellow retired vice-chairman, Guo Boxiong, whose detention appears likely.
Like her husband and sons, Mrs. Mubarak was formally detained for 15 days for questioning, but in Egypt that typically amounts to indefinite imprisonment because the detention is routinely renewed, as it has been in the cases of her sons and husband.
