Do school officials the right to use drug-sniffing dogs?

I believe that school officials do have the right to use drug-sniffing dogs. According to School Resource Officer Aaron Slater, "The goal here is drug prevention and minimizing these incidents' (source link).
This shows that when students RESPOND badly to this they need to know that the parens and officials just want to look out for them and keep them out of trouble. This also shows that the PROCESS of using drug-sniffing dogs is quick and effective plus it can get students to stop doing drugs which could keep them off the streets.
According to ACLU (American Civil Liberties Union), "Courts have said that school officials can search students in public schools if there is a reasonable suspicion to search." (source link). This shows that if school officials ASSUME that students are using and/or carrying drugs they are able to detain them and search them. This also shows that some school officials may try and get a student in trouble if they don't like them. In conclusion, using drug-sniffing dogs can help to keep students away from drugs and in the long run may keep them off the streets and out of gangs.