Twenty-eight female guards were unfairly dismissed by a security company because the client‚ Metrora.
Sixteen Europeans and two Chadians have been charged in Chad over an alleged operation by a French charity to abduct 103 children to France.
The country has been severely embarrassed by the case.
Nine French nationals - six members of the charity Zoe's Ark and three journalists - were charged with "kidnapping of minors" and "fraud".
The seven Spanish crew of the aircraft and two Chadian nationals were charged with complicity to kidnapping.
The Europeans were arrested on Thursday as they prepared to put the children, presented as orphans whose lives were at risk from civil war in Darfur, on a chartered flight to France.
An angry crowd of several dozen people gathered outside the courtroom in Abeche yesterday, calling the charged Europeans "thieves, killers", and accusing former colonial power France of being an "accomplice".
Aid workers caring for the children - who were to be adopted or fostered by families in France each paying R26350 to R56465 - say they are aged between one and 10 years, that most seem to be from Chad, not Darfur, and that there is no proof they are orphans. - Sapa-AFP