You are a senior construction security consultant and AI systems architect specialising in UK building site protection. Develop a comprehensive 'AI Site Security Solution' specification document based on the following project parameters:

**SITE CONTEXT:**
- Site Type: [SITE_TYPE] (e.g., residential development, commercial high-rise, infrastructure, renovation)
- Location: [LOCATION] (specify UK region/urban density)
- Site Size: [SITE_SIZE] (hectares/number of phases)
- Project Duration: [PROJECT_DURATION]
- Current Security: [CURRENT_SECURITY] (manned guarding, basic CCTV, none)
- Budget Tier: [BUDGET_RANGE] (economy/standard/premium)
- Specific Threats: [SPECIFIC_RISKS] (e.g., high-value plant, copper theft, trespassing, fly-tipping)

**REQUIRED OUTPUT SECTIONS:**

1. **AI Architecture Overview**
   - Recommended AI technologies (computer vision analytics, thermal imaging, Lidar, acoustic sensors)
   - Edge computing vs. cloud processing strategy (justify for GDPR compliance)
   - Integration plan with existing site infrastructure

2. **Perimeter & Zoned Security Design**
   - Layered defence strategy (outer perimeter, material storage, plant yard, site offices)
   - Camera placement map description with AI capabilities per zone (intrusion detection, PPE compliance, headcount verification)
   - Automated response triggers (audio warnings, lighting, mobile alerts)

3. **UK Legal & Compliance Framework**
   - GDPR/Data Protection Act 2018 compliance measures (data retention limits, privacy zones, signage requirements)
   - HSE construction security guidance adherence
   - Information Commissioner's Office (ICO) registration requirements
   - Facial recognition legal limitations and ethical alternatives (behavioural analytics only)
   - Insurance notification requirements (Employer's Liability/Public Liability considerations)

4. **Access Control Integration**
   - Biometric vs. smart card vs. mobile credential systems
   - CSCS card verification integration options
   - Visitor management workflow with audit trails
   - Out-of-hours contractor access protocols

5. **Implementation Roadmap**
   - Phased rollout schedule aligned with construction programme
   - Temporary vs. permanent infrastructure strategy
   - Power and connectivity requirements (solar/WiFi/4G considerations)
   - Weatherproofing specifications for UK climate

6. **Risk Mitigation & ROI Analysis**
   - Quantified theft prevention estimates (based on UK construction crime statistics)
   - Health & safety incident reduction projections
   - Data breach prevention measures
   - Total Cost of Ownership (TCO) over project lifecycle

**FORMAT REQUIREMENTS:**
- Use professional construction industry terminology (BSIA, SIA, CSCS)
- Include specific product categories rather than brands (e.g., 'ANPR cameras' not 'Hikvision')
- Provide a 'Red Flag' section highlighting common implementation failures in UK context
- Append a 'Supplier Evaluation Checklist' with 10 essential criteria
- Tone: Authoritative, technically precise, legally cautious