You are lucky they use warrants in your area...
In mine, just suspicion of welfare of children get the cops into my house barging in with threats of calling my landlord to get me evicted and then get the key and enter the house by force.
As far as smell of urine, they can use anything. They used the fact in my case that my cat's litter box was not cleaned (it had just done its job).
The point is that we threaten their jobs. Raising awareness of the corrupt justice/education system yields to threat of their jobs. They'd rather see parents get whacked by robbers and them keep their jobs than parents alive and firing the whole lot of them.
What can we say? Ever since abortion for jobs, it's like that everywhere...kill or render miserable whoever threatens jobs of people or whoever could be harassed enough to cough up money to lawyers and to their system.
The best option so far is to raise awareness and prove that they are covering an agenda or something up, as related to raising awareness of government corruption and public school.
What I find funny is that the Left is quite happy with the right to privacy BEFORE the child is born, but not after? LOL!