Meaning of 「臨徴す」?


I'm currently reading the novel 「学生街の殺人」by 東野圭吾, and on page 230 the following
sentence is spoken:

[code]

    「商店街の会費を臨徴して作ったんだろう？まさしく背水の陣だな」
    
[/code]

The character is referring to all shop owners of the district having pooled
together money to set up a big Christmas tree in the vicinity in hopes of more
customers.

For some reason, I cannot determine the meaning of 「臨徴す」. It would make sense
to me if it was only 「徴す」, but why is a 「臨」prepended in this case?




I think it's short for [臨時徴収]{りんじちょうしゅう}... (I have never heard it, though...)




I think it's short for [臨時徴収]{りんじちょうしゅう}... (I have never heard it, though...)

