FALLSBURG - Unarmed security guards are now patrolling the halls inside a Hudson Valley elementary school after a heroin probe.

Seven teachers at Benjamin Cosor Elementary School in Fallsburg are under investigation following the recent discovery of heroin in the building.

Even though parents are demanding the removal of the teachers, they remain working at the school. The district says that the teachers are still working because state laws and union contracts prohibit them from giving the workers a leave of absence during the probe.

Outraged parents demanded the teachers’ removal at the Fallsburg Board of Education meeting last week. The board voted Monday night to hire two private, unarmed security guards to patrol the school and supplement the resource officer already there.

Fallsburg police say the teachers are not cooperating with their investigation and are refusing to take drug tests, at the advice of their unions.