Perhaps they were worried that the evidence would have been deleted if they'd waited.
Or perhaps, they simply really were using it as a cover to raid the office to destroy any info about the chief.
Hopefully time will tell.
The allegation of identity theft got them the warrant. However, that allegation seems like a lie, when it's compared against the event the cops were investigating.
Reporter Phyllis Zorn verified the tip by conducting a driver’s record search on the Department of Revenue’s website, using Newell’s first and last name and the driver’s license number for Newell that the record had received from its source. The results showed the tip about Newell’s record was accurate.
Being caught in a lie might explain why the warrant was withdrawn.
ref: https://www.kcur.org/news/2023-08-20/now-withdrawn-affidavit...
My opinion, IANL, is they are and never were credible and the police in collusion with the judge did something at least unethical if not illegal.
A search warrant of a newspaper is not inherently illegal.
On the other hand, if I understand correctly, the search warrant was authorized (or at least the authorization was filed) only three days after the search. Post hoc approval of search warrants is almost certainly not legal. If that wasn't a clerical mixup, then yes, the search warrant was illegal. (I'm not going to get too bothered by an approved search warrant that didn't get filed for three days because a clerk messed up - if that's what happened.)