"The question for the opinion of the High Court is: Was I correct to rule that, by the inclusion of the phrase ' ..... as perceived by an authorised officer of the Agency', Condition 2.6.12 of PPC permit number BK 1988 issued in respect of the respondent company's site known as 'Westmill II' was invalid or ultra vires on any or all of the following grounds: a. It offends the principles of certainty (clarity and foreseeability) required for the elements of an offence by: (i) Domestic law and/or (ii)Art 7 ECHR . b. It has the effect of usurping the fact finding and adjudicative roles of the Court by bestowing on an authorised officer the functions of establishing the relevant facts (according to that officer's subjective judgement) and obliging the Court to convict whenever it is satisfied that the officer honestly perceived those facts. c. It results in a Condition which extends beyond the object of the power provided for at Regulation 8 of theLandfill (England and Wales) Regulations 2002 ."
"(1) The following requirements shall apply to landfill sites from the start of the operational phase until definitive closure. (2) The operator shall carry out the control and monitoring procedures set out in Schedule 3. (3) Where the procedures required by paragraph (2) reveal any significant adverse environmental effects, the operator shall notify the Environment Agency as soon as reasonably possible. (4) When it receives a notification of significant adverse environmental effects in accordance with paragraph (3), the Environment Agency shall determine the nature and timing of corrective measures that are necessary and shall require the operator to carry them out. (5) The operator shall report at intervals specified by the Environmental Agency, on the basis of aggregated data, the results of monitoring and on such other matters which the Environment Agency requires to demonstrate compliance with the conditions of the landfill permit or to increase its knowledge of the behaviour of waste in landfill."
" ..... Landfill gas odour monitoring and reporting will be undertaken in accordance with the methodology detailed below."
"Frequency of landfill odour monitoring Landfill odour monitoring will be carried out a minimum of once per working week during operating hours unless a complaint is received. The monitoring will then be carried out daily for at least 5 working days from the date of the complaint."
"Landfill odour monitoring methodology Landfill odour monitoring will be carried out around the boundary of the operational cell of the landfill and in the residential area, industrial area and Health Farm close to the landfill as these have been identified as the sensitive receptors most likely to be affected. If a complaint has been received the monitoring will also be carried out close to the origin of the complaint or the nearest receptors. The route will be walked by the designated person or site manager to detect any landfill odour with the designated person walking slowly and breathing normally. If landfill odour is detected while walking the intensity should be recorded as at least 3. When landfill odour cannot be detected in this way the designated person will stand still at the monitoring point and inhale deeply facing upwind. If landfill odour is then detected, but can only be detected in this manner, the intensity should be noted as 2."
"Calibration of site operative In addition to the landfill odour monitoring carried out in Section 6.3.5, landfill gas odour monitoring will be carried out once a month by the site manager in conjunction with the designated person. This will be undertaken to calibrate the landfill odour monitoring carried out by the designated person. The designated person will also carry out landfill odour monitoring in conjunction with the Agency Officer when a visit is undertaken and this is requested by the Agency Officer. This will be undertaken to calibrate the landfill odour monitoring carried out by the designated person and ensure consistency in landfill odour monitoring. When dual monitoring is carried out by either the site manager or Environment Agency Officer, then individual observations shall be taken and recorded prior to any discussion being undertaken."
"All emissions to air from the process shall be free from offensive odour as perceived by an authorised officer of the Scottish Environment Protection Agency (SEPA) outside the process boundary."
"In this way, counsel argued, the drafting of the condition took the decision as to whether any breach had occurred away from the court and left it in the hands of the SEPA officials. That result would be unobjectionable if Parliament had provided for it by legislation, but it was unacceptable for SEPA to seek to achieve it by skillful drafting of the condition."
"We reject this argument also. The position might well have been different if the condition had said that a certificate by the authorised officer would be conclusive evidence that there had been an offensive odour outside the process boundary due to emissions to air from the process. In that event SEPA would in effect be seeking to set its own officer up as the final arbiter of a matter which might lie at the heart of a prosecution under section 23 (1) (a) of the Act [Environmental Protection Act 1990 ]. Here, however, as Sir Crispin [counsel for the operator] accepted, there was no certification procedure and a sheriff could reject the authorised officer's evidence about an offensive odour, if he thought it incredible or simply unreliable. He might even reach the view that the officer had acted so unreasonably that he had in effect failed to apply the correct approach in deciding that an odour was offensive. As the Advocate Depute argued, the condition lays down a standard which is ascertainable and it refers to the authorised officer as a way of verifying, readily but not conclusively, whether the standard has been met. It remains open to the court before which any prosecution is brought to determine whether the Crown has proved that the operators failed to meet the required standard and so carried on the process in breach of condition 2.1.3."
"Of course issues may be raised in criminal proceedings about the undue sensitivity or sensitisation of local inspectors or as to differing standards as to what is 'offensive', or indeed as to whether a prosecution had been influenced by local pressure. But in principle, it is not irrational for a court to be able to receive and rely on the evidence of an insepctor that he smelt a smell and that it smelled horrible. He may be untruthful, he may be unreliable, he may be unduly sensitive, but courts are not unaccustomed to dealing with that sort of issue. The offensive escape has to be proved before the question of due diligence and reasonable steps arises."
"I accept the force of that conclusion and adopt it in rejecting this part of the subjectivity argument."
"The respondents can - and indeed must - themselves check to see whether the emissions from the process are free from odour outside the boundary. By specifying that only a SEPA official can determine that there has been a breach, SEPA have narrowed the condition and have made its operation more certain and predictable, thus providing a substantial safeguard for the operators."
"I cannot accordingly conclude that an odour boundary condition, framed by reference to the perception of a local authority enforcement officer, would be irrational or unlawful."
"The supposition ..... Mr Banwell denies this and submits that reliance on the subjective perception of the authorised officer does not make the condition inherently uncertain. Practically, determination of whether emissions reach a level which contravene the condition would be difficult to measure in empirical terms, given the wide - - - - - "
"The judgement of the authorised officer therefore affords the 'best evidence' so to speak."