( CNN ) -- A former southern California schoolteacher is set to be arraigned Tuesday amid allegations he bound young students , then photographed them with semen-filled spoons held at their mouths and three-inch cockroaches crawling across their faces , among other graphic depictions . Authorities have said they have discovered roughly 600 images taken by Mark Berndt , 61 , in his classroom . Dismissed by the Los Angeles Unified School District school board about a year ago , Berndt was arrested January 30 . He appeared in court two days later , after which he was ordered held on $ 23 million bail -- $ 1 million for each of the 23 counts of lewd acts on a child that he faces . All of those initial 23 victims were between 7 and 10 years old , and all but two of them were girls , the Los Angeles County District Attorney 's Office said . Berndt has not yet entered a plea . Since his initial appearance , Los Angeles County Sheriff 's Department spokesman Sgt . Dan Scott said an additional 200 photographs purportedly taken by the longtime Miramonte Elementary School teacher had been found . It is uncertain what , if any , additional charges Berndt may face as a result of that discovery or other developments in the investigation . The law enforcement probe began when investigators found `` over 40 photographs depicting children in a school classroom , with their eyes blindfolded and mouths covered with tape , '' a Los Angeles County sheriff 's statement said . `` Investigators learned that some of the photos depicted suspect Mark Berndt with his arm around the children , or with his hand over their mouths , '' according to the sheriff 's department . Some photos showed `` children with large live Madagascar-type cockroaches on their faces and mouths . '' Others show female students with `` what appeared to be a blue plastic spoon , filled with an unknown clear/white liquid substance , up to their mouths as if they were going to ingest the substance , '' said the sheriff 's department . Scott said that Berndt was arrested soon after lab testing matched Berndt 's DNA with a substance -- later determined to be semen -- from a blue plastic spoon and an empty container from a trash bin in his classroom . The young students `` did n't realize they were victimized , '' said the sheriff 's department spokesman . `` They thought they were being blindfolded and gagged as a game , '' Scott added . `` And they were rewarded with cookies or spoons full of sugar , ( but ) they did not realize the spoon contained semen . '' A search of Berndt 's home found hundreds of photographs depicting children and a video showing sexual `` bondage '' activity that `` mirrored the bondage-type photos of the children , '' investigators said . Parent Bessy Garcia , the mother of two children who were among Berndt 's alleged victims , spoke of betrayal . `` He was n't only a teacher , he was our personal friend , '' she told CNN earlier this month . `` He tricked us . We thought he was the best person in the world . '' Los Angeles School Superintendent John Deasy said that Berndt was removed from his teaching job in January 2011 , after school officials learned of the police investigation . A teacher for 30 years , Berndt initially challenged the school district 's decision to dismiss him . But he eventually dropped his appeal and resigned last spring . His arrest this January precipitated a broader fallout , into the adequacy of safeguards for the school 's students and the prospect of more victims . Days after Berndt was taken into custody , another Miramonte Elementary teacher -- Martin Springer , 49 -- was arrested and charged with three felony counts of lewd acts with a girl under the age of 14 . He has pleaded not guilty . The school board subsequently shut Miramonte down for two days , during which the board reconstituted the entire staff in the 1,400-student school . Miramonte is located in unincorporated Los Angeles County within the Florence-Firestone area , about 6 miles south of downtown Los Angeles .
An arraignment is set for Tuesday in Madagascar for Bessy Garcia , one year later . The former teacher faces 23 counts of lewd acts involving a child . He lost his job in one year later , then was arrested 61 . Police say his DNA matches semen found on spoons in his classroom .