“There is no sufficient reason to exclude the evidence of PS Power that Sergeant Collin laid hands on Mr Morrison before he was arrested or was told he was going to be arrested” does not advance the matter unless one knows whether the charge of disorderly conduct related to what happened before the touching being described in this passage and indeed why and in what circumstances there was any touching. On the prosecution’s case any touching of the respondent followed the respondent’s vehement insistence that he was allowed to enter the cordoned off area, had entered it and in so doing had acted in a disorderly way. 27). Having concluded that PC Sandell was not acting in the execution of his duty when he arrested Mr Morrison because the cordon was unlawful, subparagraph (7) of paragraph 14 reads in part: “Similarly there is insufficient evidence that Morrison wilfully obstructed PC Sandell with the intention of causing harassment, alarm and distress. It was not the defendant who was guilty of disorderly behaviour, it was PC Sandell who was ‘out of order’ in an attempt to prevent Mr Morrison from exercising his right to use a public right of way.” 28). The court must have decided this part of the case on the basis that the alleged disorderly conduct was the use of “threatening, abusive or insulting words or behaviour or disorderly behaviour” by the respondent when wilfully obstructing PC Sandell. That was not, so it seems to us, how the prosecution put their case on the disorderly conduct charge. 29). In fact PC Sandell arrested the respondent for his disorderly conduct, not, as the court appears to have thought, for obstructing the police in the execution of their duty by entering the area. If he had the power to arrest he would have been acting in the course of his duty. Section 5(4) and (5) of thePublic Order Act 1996 give a constable the power to arrest in the following circumstances for disorderly conduct: “(4) A constable may arrest a person without warrant if— (a) he engages in offensive conduct which a constable warns him to stop, and (b) he engages in further offensive conduct immediately or shortly after the warning. 30). In subsection (4) “offensive conduct” means conduct the constable reasonably suspects to constitute an offence under this section, and the conduct mentioned in paragraph (a) and the further conduct need not be of the same nature.”