One question with respect to all the reported erasures carried out by police -- on the spot or shortly thereafter. If recording were indeed a crime (I can't br

One question with respect to all the reported erasures carried out by police -- on the spot or shortly thereafter. If recording were indeed a crime (I can't bring myself to write this other than in the conditional), would they not then be destroying evidence of the very crime under which they are acting in arresting and confiscating equipment? Which itself would be... a crime?