IS 98 school aide Anthony Davis is behind bars inside the 42nd precinct in the Bronx.
That's where he spent most of the day being questioned by police, after investigators took him out of the Boston Road school at around midday Friday.
His career with the Department of Education is in serious jeopardy.
He's accused of something unthinkable: Influencing students at the school in the wrong way.
Police allege that he pushed a 15-year-old student at the school to sell drugs.
According to police, on two occasions the 41-year-old tried to put marijuana in the student's pocket.
Investigators allege Davis threatened the student, approaching him with a knife in his hand, plunging the knife into a table, and allegedly saying, "Do you remember what I told you, if you don't do this for me I will kill you and hurt your siblings and mother."
Davis is charged with misdemeanors including weapons possession, endangering the welfare of a child, and menacing.